All Scheduled Events, Physics | AS

February 21, 2020 Friday 11:00 AM +
726 Broadway, 902, Lg Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

HEP Journal Club
HEP Journal Club

February 21, 2020 Friday 12:00 PM +
Columbia University, Pupin Hall, Room 705
Center for Quantum Phenomena Seminars (cqp)

QClub seminar
Alexandru Georgescu
CCQ, Flatiron Institute

Turning the Dials of Quantum Materials via Electron-Lattice Coupling

An essential aspect in the study of correlated materials is the interplay of structural motifs and electronic degrees of freedom. Artificial materials obtained by either heterostructuring or intermixing provide an avenue to not just design new relevant materials, but to obtain insight into the original components themselves. In this talk I will focus on the rare-earth nickelate materials class (RNiO3) using three different examples of artificial materials. Using these, I will explain how different aspects of broken structural symmetry can affect the interplay of correlations, kinetic energy and resulting physical properties.

February 21, 2020 Friday 1:00 PM +
726 Broadway, 902, Lg Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

NYU-CCA
NYU-CCA NYU-CCA

February 24, 2020 Monday 12:00 PM +
726 Broadway, room 871
Soft Condensed Matter Seminars (csmr)

Arnold Mathijssen
Stanford University

Collective functionality in intelligent active matter: Bridging multi-scale biology with the physics of solids, fluids and information

Biological systems flourish through collective functionality, by self-assembling into cells, tissues, flocks and parliaments. Understanding this multi-scale organization also lies at the heart of modern engineering and medicine: Pathologies can arise from deficiencies in collective functionality, while active and adaptive materials can be designed from controlling systems out of equilibrium. In this talk, I will overview our recent work on building first-principle theories, numerical tools, and experiments for studying the fascinating physics of life. We will first focus on reliable communication in ultra-fast biology, exemplified by the discovery of ‘hydrodynamic trigger waves’ . Second, we will discuss bacterial contamination dynamics, which is enhanced by the ability of cells to swim against flows. Third, we consider the role of topology in biofunctionality, especially in ‘active carpets’ like ciliary arrays. These insights open up exciting new avenues towards unravelling synthetic and biological active matter, through collective functionality, together.

February 24, 2020 Monday 12:30 PM +
726 Broadway, 940, CCPP Seminar
Other Center for Cosmology and Particle Physics Events (ccpp)

CCPP Brown Bag
Tyler Pritchard
New York University

Stars exploding

February 24, 2020 Monday 2:00 PM +
726 Broadway, 940, CCPP Seminar
Astrophysics and Relativity Seminars (astro)

Christopher Lovell
University of Hertfordshire

Learning the Relationship between Galaxy Spectra and their Star Formation Histories using Convolutional Neural Networks and Cosmological Simulations

We study how well deep learning approaches can be used to learn what the underlying SFH of a galaxy is purely from its spectra, using cosmological sims to train and validate the approach. We are also working on extensions to the project that use the outputs of these trained models as priors in SED fitting approaches, leading to more physically constrained posteriors on previously poorly constrained parameters, in particular the SFH.

February 24, 2020 Monday 3:00 PM +
726 Broadway, 901, Sm Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

NYU Time Domain
NYU Time Domain

February 25, 2020 Tuesday 11:00 AM +
726 Broadway Room 1067
Special Center for Quantum Phenomena Colloquium (scqpcol)

Fabio Ansaloni
University of Copenhagen

Single-electron readout and control in a two-dimensional array of quantum dots

The engineering of compact and high-bandwidth readout methods becomes crucial as single qubit are scaled up in one- and two-dimensional arrays to form large scale processors [1]. Recent development of dispersive readout techniques has enabled the demonstration of spin-qubit coherent control in foundry-fabricated devices [2]. In recent years, similar readout techniques have been increasingly harnessed to unveil the non-equilibrium dynamics of varied condensed matter systems, such as SIT transitions [3].
In this talk, I will discuss our recent results on the study of a foundry-fabricated 2x2 array of silicon quantum dots. Two-dimensional arrays constitute a useful platform for spin qubit-processors as well as condensed matter simulations [4]. Exploiting gate-based dispersive readout, we develop a hybrid charge-sensing readout technique that enables us to reconfigure the array as single, double, triple, or quadruple dots. We use dispersive charge sensing to deplete all dots down to the last electron as well as demonstrate the shuttling of individual electrons within the two-dimensional array.
[1] Vandersypen, L.K.M. et al. npj Quantum Inf., 3, 34 (2017)
[2] Crippa, A. et al. NatureCommunications 10, 2776 (2019)
[3] Kuzmin, R. et al. Nature Physics 15, 930 (2019)
[4] Dehollain et al arXiv:1904.05680 (2019)

February 25, 2020 Tuesday 11:30 AM +
726 Broadway, 902, Lg Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

Astro Ph
Astro Ph

February 25, 2020 Tuesday 3:00 PM +
CCA
Other Center for Cosmology and Particle Physics Events (ccpp)

Candidate Talk
Adrian Price-Whelan
Flatiron

TBA

AT CCA - NOTE TIME

February 26, 2020 Wednesday 1:00 PM +
726 Broadway, 901, Sm Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

Blanton Tinker Pullen
Blanton Tinker Pullen

February 26, 2020 Wednesday 2:00 PM +
726 Broadway, 940, CCPP Seminar
High Energy Physics Seminars (hep)

Adrian Price-Whelan
Flatiron

TBA

TBA

February 26, 2020 Wednesday 3:30 PM +
726 Broadway, 902, Lg Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

Astroparticle Group Mtg
Astroparticle Group Mtg

February 26, 2020 Wednesday 3:30 PM +
726 Broadway, 901, Sm Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

Modjaz Group Mtg
Modjaz Group Mtg

February 27, 2020 Thursday 8:30 AM - 12:30PM +
New Lab, 19 Morris Ave, Building 128, Brooklyn
Center for Quantum Phenomena Seminars (cqp)

NYC Quantum Summit: From Research to Reality

NYC Quantum Summit: From Research to Reality is a half-day immersive event at New Lab showcasing the science and talent occurring within NY region academic institutions. We will hear future visions of quantum from leading researchers and the tangible steps that universities are taking to make this future a reality. Presented in partnership with Columbia University, Yale University and NYU, this is the third in the New Lab Quantum Summit series.
We are honored to have a range of esteemed speakers joining us for this event including Steven Girvin of Yale, Alex Gaeta and James Hone of Columbia University, and Andrew Kent, Javad Shabani, and Jiehang Zhang of NYU.
Additional speakers to be announced.

Date And Time:
Thu, February 27, 2020
8:30 AM – 12:30 PM EST

Location:
New Lab
19 Morris Ave, Building 128
(Enter at the Cumberland St Gate)
Brooklyn, NY 11205

Register on Eventbrite

February 27, 2020 Thursday 12:15 PM +
CCA
Other Center for Cosmology and Particle Physics Events (ccpp)

Candidate Talk
Masha Baryakhtar
NYU

TBA

TBA - AT CCA - NOTE TIME

February 27, 2020 Thursday 4:00 PM +
726 Broadway Room 940
Physics Colloquia (colloquia)

Frans Pretorious
Princeton University

TBA

February 28, 2020 Friday 11:00 AM +
726 Broadway, 902, Lg Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

HEP Journal Club
HEP Journal Club

February 28, 2020 Friday 3:00 PM +
Columbia, Davis Auditoriu
Other Center for Cosmology and Particle Physics Events (ccpp)

Big Apple Colloquium
James Peebles
Princeton

Lessons from the History of Physical Cosmology

LOCATION: Columbia, Davis Auditorium I will review major steps to the establishment of the LambdaCDM cosmology, with particular attention to the many examples of ideas and lines of research that were introduced on more than one occasion, independently apart from our shared culture of physical science. I gather it took a sociologist, Robert Merton, to see that this is a phenomenon that deserves a name: multiples in scientific discovery. I will propose lessons on the nature of our enterprise of natural science to be drawn from the many examples of this phenomenon in cosmology. The talk will be followed by an informal wine & cheese reception in the Physics Theory Center Pupin Physical Laboratories, 8th floor. Please find directions here: http://www.astro.columbia.edu/findUs

March 2, 2020 Monday 2:00 PM +
726 Broadway, 940, CCPP Seminar
Other Center for Cosmology and Particle Physics Events (ccpp)

Candidate Talk
Masha Baryakhtar
NYU

TBA

AT NYU - TIME TBD

March 2, 2020 Monday 3:00 PM +
726 Broadway, 901, Sm Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

NYU Time Domain
NYU Time Domain

March 3, 2020 Tuesday 11:30 AM +
726 Broadway, 902, Lg Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

Astro Ph
Astro Ph

March 3, 2020 Tuesday 2:00 PM +
726 Broadway, 940, CCPP Seminar
Astrophysics and Relativity Seminars (astro)

Saurabh Jha
Rutgers

TBA

March 4, 2020 Wednesday 1:00 PM +
726 Broadway, 901, Sm Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

Blanton Tinker Pullen
Blanton Tinker Pullen

March 4, 2020 Wednesday 2:00 PM +
726 Broadway, 940, CCPP Seminar
High Energy Physics Seminars (hep)

Katelin Schutz
UC Berkeley

TBA

March 4, 2020 Wednesday 3:30 PM +
726 Broadway, 902, Lg Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

Astroparticle Group Mtg
Astroparticle Group Mtg

March 4, 2020 Wednesday 3:30 PM +
726 Broadway, 901, Sm Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

Modjaz Group Mtg
Modjaz Group Mtg

March 5, 2020 Thursday 3:00 PM +
CCA
Other Center for Cosmology and Particle Physics Events (ccpp)

Candidate Talk
Katelin Schutz
UC Berkeley

TBA

AT CCA - NOTE TIME

March 6, 2020 Friday 11:00 AM +
726 Broadway, 902, Lg Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

HEP Journal Club
HEP Journal Club

March 6, 2020 Friday 1:00 PM +
726 Broadway, 902, Lg Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

NYU-CCA
NYU-CCA NYU-CCA

March 9, 2020 Monday 12:30 PM +
726 Broadway, 940, CCPP Seminar
Other Center for Cosmology and Particle Physics Events (ccpp)

CCPP Brown Bag
Maryam Modjaz
New York University

Time Domain Astronomy

March 9, 2020 Monday 2:00 PM +
726 Broadway Room 1067
Special Center for Quantum Phenomena Colloquium (scqpcol)

Md. Shafayat Hossain
Princeton University

Strongly interacting composite fermions: A platform to test the Bloch ferromagnetism and Luttinger theorem

The nature of the ground state of a low-density, two-dimensional electron system has been a topic of intense theoretical and experimental speculation and controversy, because the physics here is governed by strong correlations. Felix Bloch predicted a fully spin-polarized ground state for a dilute fermionic system in 1929. However, such a state has eluded experimental realization for the last nine decades. In the first part of my talk, I will present an experimental realization of the elusive interaction-driven spin polarization in a system of unusual suspects, namely flux-electron composite fermions (CFs). CFs are exotic quasiparticles, each composed of an electron and two flux quanta, formed in the half-filled Landau level of a two-dimensional electron system. As the density of CFs is lowered, the CFs become strongly interacting and make a sudden transition into a ferromagnetic state. In the second part, I will discuss the nature of the CF Fermi sea in the presence of such strong inter-CF interaction. In particular, the applicability of the Luttinger theorem and particle-hole symmetry (time permitting) will be highlighted.

March 9, 2020 Monday 3:00 PM +
726 Broadway, 901, Sm Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

NYU Time Domain
NYU Time Domain

March 10, 2020 Tuesday 11:00 AM +
726 Broadway Room 1067
Center for Quantum Phenomena Seminars (cqp)

Luis A. Orozco
University of Maryland

Optomechanics with angular momentum in optical nano-fibers

Nanofibers are interesting optical objects produced by gradually reducing an ordinary single mode optical fiber to half-micron diameters, less than the typical wavelength we use at 780 nm. We have studied the Spin-optomechanical coupling between light and a torsional mode of nanofibers with nanofibers excited with circularly polarized light in the HE11 mode. We have been able to excite these modes also with modes that have orbital angular momentum, but recently we have observed significant changes in thermal noise depending on the angle between the electric field and the apparent birefringence axes of the nanofiber. The result is the reduction/enhancement of noise of the torsional mode with respect to the thermal level depending on the angle.

March 10, 2020 Tuesday 11:30 AM +
726 Broadway, 902, Lg Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

Astro Ph
Astro Ph

March 10, 2020 Tuesday 2:00 PM +
726 Broadway, 940, CCPP Seminar
Astrophysics and Relativity Seminars (astro)

Jeyhan Kartaltepe
Rochester Institute of Technology

TBA

March 10, 2020 Tuesday 5:00 PM +
726 Broadway, 940, CCPP Seminar
Other Center for Cosmology and Particle Physics Events (ccpp)

WiPhy
Women in Physics

Contact Lauren Chiriboga

March 11, 2020 Wednesday 2:00 PM +
726 Broadway, 940, CCPP Seminar
High Energy Physics Seminars (hep)

Lorenz Eberhardt
IAS

March 11, 2020 Wednesday 3:30 PM +
726 Broadway, 902, Lg Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

Astroparticle Group Mtg
Astroparticle Group Mtg

March 11, 2020 Wednesday 3:30 PM +
726 Broadway, 901, Sm Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

Modjaz Group Mtg
Modjaz Group Mtg

March 12, 2020 Thursday 4:00 PM +
726 Broadway Room 940
Physics Colloquia (colloquia)

Ignacio Cirac
Max Planck Institute

Simulation of Quantum Many-body Systems

Quantum many-body systems are very hard to simulate, as computational resources (time and memory) typically grow exponentially with system size. However, quantum computers or analog quantum simulators may perform that task in a much more efficient way. In this talk, I will first review some of the methods that have been proposed for this task and then explain the advantages and disadvantages of analog quantum simulators with respect to quantum computers. I will also describe possible applications in condensed matter physics, high-energy physics, and chemistry.

March 13, 2020 Friday 11:00 AM +
726 Broadway, 902, Lg Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

HEP Journal Club
HEP Journal Club

March 18, 2020 Wednesday 1:00 PM +
726 Broadway, 901, Sm Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

Blanton Tinker Pullen
Blanton Tinker Pullen

March 20, 2020 Friday 1:00 PM +
726 Broadway, 902, Lg Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

NYU-CCA
NYU-CCA NYU-CCA

March 23, 2020 Monday 12:30 PM +
726 Broadway, 940, CCPP Seminar
Other Center for Cosmology and Particle Physics Events (ccpp)

CCPP Brown Bag
Abhishek Maniyar
New York University

Intensity Mapping and Cosmology

March 23, 2020 Monday 3:00 PM +
726 Broadway, 901, Sm Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

NYU Time Domain
NYU Time Domain

March 24, 2020 Tuesday 11:30 AM +
726 Broadway, 902, Lg Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

Astro Ph
Astro Ph

March 24, 2020 Tuesday 2:00 PM +
726 Broadway, 940, CCPP Seminar
Astrophysics and Relativity Seminars (astro)

Or Graur
Harvard CfA

TBA

March 25, 2020 Wednesday 1:00 PM +
726 Broadway, 901, Sm Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

Blanton Tinker Pullen
Blanton Tinker Pullen

March 25, 2020 Wednesday 3:30 PM +
726 Broadway, 902, Lg Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

Astroparticle Group Mtg
Astroparticle Group Mtg

March 25, 2020 Wednesday 3:30 PM +
726 Broadway, 901, Sm Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

Modjaz Group Mtg
Modjaz Group Mtg

March 26, 2020 Thursday 4:00 PM +
726 Broadway Room 940
Physics Colloquia (colloquia)

Andrew Wray
NYU

TBA

March 27, 2020 Friday 10:00 AM +
726 Broadway Room 1067
Center for Quantum Phenomena Seminars (cqp)

Tanya Zelevinsky
Columbia University

Quantum clocks with ultracold molecules

As quantum science moves beyond controlling atoms, diatomic molecules can be created and optically trapped at ultracold temperatures. This allows exquisite control over the quantum states of the molecules. Using this platform, we can generate long-lived coherent superpositions of far-separated molecular quantum states. The capability to create these superpositions results in a precise clock that is based on molecular vibrations. The vibrational molecular clock allows interatomic force measurements with resolution exceeding a part per trillion, with a potential to improve the constraints on new short-range mass-dependent forces. The full control of the molecular quantum states also helps to shed light on ultracold chemical reactions that proceed as matter waves, and to enable a range of new experiments in fundamental physics and chemistry.

March 27, 2020 Friday 11:00 AM +
726 Broadway, 902, Lg Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

HEP Journal Club
HEP Journal Club

March 30, 2020 Monday 12:30 PM +
726 Broadway, 940, CCPP Seminar
Other Center for Cosmology and Particle Physics Events (ccpp)

CCPP Brown Bag
Jack Donahue
New York University

World-sheet scattering

March 30, 2020 Monday 3:00 PM +
726 Broadway, 901, Sm Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

NYU Time Domain
NYU Time Domain

March 31, 2020 Tuesday 11:30 AM +
726 Broadway, 902, Lg Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

Astro Ph
Astro Ph

March 31, 2020 Tuesday 2:00 PM +
726 Broadway, 940, CCPP Seminar
Astrophysics and Relativity Seminars (astro)

Shirley Ho
CCA

TBA

April 1, 2020 Wednesday 1:00 PM +
726 Broadway, 901, Sm Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

Blanton Tinker Pullen
Blanton Tinker Pullen

April 1, 2020 Wednesday 2:00 PM +
726 Broadway, 940, CCPP Seminar
High Energy Physics Seminars (hep)

Seyda Ipek
UC Irvine

April 1, 2020 Wednesday 3:30 PM +
726 Broadway, 902, Lg Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

Astroparticle Group Mtg
Astroparticle Group Mtg

April 1, 2020 Wednesday 3:30 PM +
726 Broadway, 901, Sm Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

Modjaz Group Mtg
Modjaz Group Mtg

April 2, 2020 Thursday 4:00 PM +
726 Broadway Room 940
Physics Colloquia (colloquia)

Feryal Ozel
University of Arizona

TBA

April 3, 2020 Friday 11:00 AM +
726 Broadway, 902, Lg Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

HEP Journal Club
HEP Journal Club

April 3, 2020 Friday 11:00 AM +
726 Broadway Room 1067
Center for Quantum Phenomena Seminars (cqp)

Leslie Schoop
Princeton University

Chemical bonds in square nets and their relation to topology

The very simple structural motif of a square net has gained interest from both, solid-state chemists and condensed-matter physicists, for a long time. The fascinating aspect from the chemistry perspective is the nature of chemical bonding in the motif. If composed if main group elements, in can feature a delocalized, “hypervalent” bond, which violates conventional electron counting schemes. In this talk, I am going to show how this type of bonding can be related to a topological band structure. After establishing this relation, it becomes possible to identify, synthesize and study a variety of new topological semimetals. I will introduce several of these during this talk.
periodic table and topological band structure

periodic table and topological band structure

April 3, 2020 Friday 1:00 PM +
726 Broadway, 902, Lg Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

NYU-CCA
NYU-CCA NYU-CCA

April 6, 2020 Monday 12:30 PM +
726 Broadway, 940, CCPP Seminar
Other Center for Cosmology and Particle Physics Events (ccpp)

CCPP Brown Bag
Sebastian Macaluso
New York University

Looking into Jets with Machine Learning

April 6, 2020 Monday 3:00 PM +
726 Broadway, 901, Sm Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

NYU Time Domain
NYU Time Domain

April 7, 2020 Tuesday 11:00 AM +
726 Broadway Room 1067
Center for Quantum Phenomena Seminars (cqp)

Riccardo Comin
MIT

Topological physics in the 2D kagome network

The kagome network, very popular in Japanese art, is one of the possible tilings of two-dimensional space, one with the same point symmetries as the hexagonal lattice of graphene. Recent theoretical developments suggest that the combination of unusual magnetism, spin-orbit coupling, and geometric frustration in kagome metals may lead to a wide range of novel topological physics, such as fractional quantum Hall effect and intrinsic anomalous Hall effect. In these phenomena, a major role is played by the topologically nontrivial flat bands and massive Dirac cones, both of which are predicted to exist from the unique geometrical hopping pathways of kagome lattice. Despite these predictions, the experimental band structure of kagome compounds has long remained unreported.
In this talk, I will report on the experimental band structure of various kagome compounds belonging to the family of transition metal stannides, and in particular Fe₃Sn₂, FeSn, and CoSn. In these systems which intertwine robust magnetism and electronic topology, we observed various manifestations of topological physics. These include the realization of the Kane-Mele model for 2D Dirac fermions with a spin-orbit-induced topological gap, as well as the discovery of the elusive flat bands with nonzero Chern number.
In sum, transition metal-based kagome lattices have emerged a new platform for intriguing phenomena arising from the combination of topology, magnetism, and correlations. I will discuss the prospects and outlook for further exploration of novel topological physics in this materials family.

April 7, 2020 Tuesday 11:30 AM +
726 Broadway, 902, Lg Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

Astro Ph
Astro Ph

April 7, 2020 Tuesday 2:00 PM +
726 Broadway, 940, CCPP Seminar
Astrophysics and Relativity Seminars (astro)

Jerry Ostriker
Columbia

TBA

April 8, 2020 Wednesday 1:00 PM +
726 Broadway, 901, Sm Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

Blanton Tinker Pullen
Blanton Tinker Pullen

April 8, 2020 Wednesday 3:30 PM +
726 Broadway, 902, Lg Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

Astroparticle Group Mtg
Astroparticle Group Mtg

April 8, 2020 Wednesday 3:30 PM +
726 Broadway, 901, Sm Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

Modjaz Group Mtg
Modjaz Group Mtg

April 9, 2020 Thursday 4:00 PM +
726 Broadway, Room 940
Physics Colloquia (colloquia)

Gabriele Venenziano
CERN and College de France

Personal Reflections on Two Success Stories

I will share some personal thoughts prompted by two remarkable success stories in physics: i) the standard model of particle physics; ii) the standard model of gravitation and cosmology. In spite of their phenomenological successes both models suggest that the way we are presently dealing with short-distance physics may need some deep revision.

April 10, 2020 Friday 11:00 AM +
726 Broadway, 902, Lg Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

HEP Journal Club
HEP Journal Club

April 10, 2020 Friday 2:00 PM +
726 Broadway, 940, CCPP Seminar
Other Center for Cosmology and Particle Physics Events (ccpp)

Informal HEP Talk
Andrea Wulzer
CERN

April 13, 2020 Monday 11:00 AM +
726 Broadway Room 871
Condensed Matter Physics Seminars (cmp)

William D. Oliver
MIT

Quantum Engineering of Superconducting Qubits

Superconducting qubits are coherent artificial atoms assembled from electrical circuit elements and microwave optical components¹ . Their lithographic scalability, compatibility with microwave control, and operability at nanosecond time scales all converge to make the superconducting qubit a highly attractive candidate for the constituent logical elements of a quantum information processor^2,3. In this talk, we review the promise, progress, and challenges of engineering systems of superconducting qubits⁴. We will also briefly discuss the Center for Quantum Engineering at MIT, its industrial consortium, and their role in training tomorrow’s quantum workforce.

References
1. P. Krantz, M. Kjaergaard, F. Yan, T.P. Orlando, S. Gustavsson, W.D. Oliver, “A Quantum Engineer’s Guide to Superconducting Qubits,” Appl. Phys. Reviews 6, 021318 (2019) | arXiv:1904.06560
2. M. Kjaergaard, M.E. Schwartz, J. Braumueller, P. Krantz, J.I-J. Wang, S. Gustavsson, W.D. Oliver, “Superconducting qubits: Current state of play,” arXiv:1905.13641
3. D. Rosenberg, D.K. Kim, R. Das, D. Yost, S. Gustavsson, D. Hover, P. Krantz, A. Melville, L. Racz, G.O. Samach, S.J. Weber, F. Yan, J. Yoder, A.J. Kerman, W.D. Oliver, “3D integrated superconducting qubits,” npj Quantum Information 3, 42 (2017) | arXiv:1706.04116
4. W.D. Oliver and P.B. Welander, “Materials in Superconducting Qubits,” MRS Bulletin 38, 816-825 (2013)

April 13, 2020 Monday 12:30 PM +
726 Broadway, 940, CCPP Seminar
Other Center for Cosmology and Particle Physics Events (ccpp)

CCPP Brown Bag
Tea Temim
Space Telescope Science Institute

Something involving plasma and/or dust in space

April 13, 2020 Monday 3:00 PM +
726 Broadway, 901, Sm Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

NYU Time Domain
NYU Time Domain

April 14, 2020 Tuesday 11:30 AM +
726 Broadway, 902, Lg Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

Astro Ph
Astro Ph

April 14, 2020 Tuesday 2:00 PM +
726 Broadway, 940, CCPP Seminar
Astrophysics and Relativity Seminars (astro)

Jonathan Trump
University of Connecticut

TBA

April 15, 2020 Wednesday 1:00 PM +
726 Broadway, 901, Sm Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

Blanton Tinker Pullen
Blanton Tinker Pullen

April 15, 2020 Wednesday 2:00 PM +
726 Broadway, 940, CCPP Seminar
High Energy Physics Seminars (hep)

Gustavo Marques Tavares
University of Maryland

April 15, 2020 Wednesday 2:00 PM +
726 Broadway, 940, CCPP Seminar
High Energy Physics Seminars (hep)

Clay Cordova
University of Chicago

April 15, 2020 Wednesday 3:30 PM +
726 Broadway, 902, Lg Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

Astroparticle Group Mtg
Astroparticle Group Mtg

April 15, 2020 Wednesday 3:30 PM +
726 Broadway, 901, Sm Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

Modjaz Group Mtg
Modjaz Group Mtg

April 16, 2020 Thursday 4:00 PM +
726 Broadway Room 940
Physics Colloquia (colloquia)

Netta Engelhardt
MIT

TBA

April 17, 2020 Friday 11:00 AM +
726 Broadway, 902, Lg Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

HEP Journal Club
HEP Journal Club

April 17, 2020 Friday 1:00 PM +
726 Broadway, 902, Lg Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

NYU-CCA
NYU-CCA NYU-CCA

April 20, 2020 Monday 12:30 PM +
726 Broadway, 940, CCPP Seminar
Other Center for Cosmology and Particle Physics Events (ccpp)

CCPP Brown Bag
Jeremy Tinker
New York University

Dark matter halos and their galaxies

April 20, 2020 Monday 3:00 PM +
726 Broadway, 901, Sm Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

NYU Time Domain
NYU Time Domain

April 21, 2020 Tuesday 11:30 AM +
726 Broadway, 902, Lg Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

Astro Ph
Astro Ph

April 21, 2020 Tuesday 2:00 PM +
726 Broadway, 940, CCPP Seminar
Astrophysics and Relativity Seminars (astro)

Andreas Berlind
Vanderbilt

TBA

April 22, 2020 Wednesday 1:00 PM +
726 Broadway, 901, Sm Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

Blanton Tinker Pullen
Blanton Tinker Pullen

April 22, 2020 Wednesday 2:00 PM +
726 Broadway, 940, CCPP Seminar
High Energy Physics Seminars (hep)

William Marciano
BNL

The Neutron Lifetime Puzzle

April 22, 2020 Wednesday 3:00 PM +
726 Broadway, room 871
Soft Condensed Matter Seminars (csmr)

Jean-Baptiste Masson
Institut Pasteur

TBA

April 22, 2020 Wednesday 3:30 PM +
726 Broadway, 902, Lg Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

Astroparticle Group Mtg
Astroparticle Group Mtg

April 22, 2020 Wednesday 3:30 PM +
726 Broadway, 901, Sm Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

Modjaz Group Mtg
Modjaz Group Mtg

April 23, 2020 Thursday 4:00 PM +
726 Broadway Room 940
Physics Colloquia (colloquia)

Sabetta Matsumoto
Georgia Tech

TBA

April 24, 2020 Friday 11:00 AM +
726 Broadway, 902, Lg Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

HEP Journal Club
HEP Journal Club

April 25, 2020 Saturday 2:00 PM +
726 Broadway, room 871
Soft Condensed Matter Seminars (csmr)

Loren Hough
University of Colorado Boulder

TBA

April 27, 2020 Monday 3:00 PM +
726 Broadway, 901, Sm Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

NYU Time Domain
NYU Time Domain

April 28, 2020 Tuesday 11:00 AM +
726 Broadway, Room 1067
Center for Quantum Phenomena Seminars (cqp)

Paul Simmonds
Boise State University

Tensile-strained self-assembly:
Creating new quantum materials by stretching at the nanoscale

Since the early 1990s, self-assembled quantum dots (QDs) have been the subject of intensive research for technologies ranging from high-stability lasers, to intermediate band solar cells. Driven by compressive strain, semiconductor QDs form spontaneously on the (001) surfaces of both III-V and group IV materials. That being said, QDs grown on non-(001) surfaces, and QDs grown under tensile rather than compressive strain, are highly desirable for certain applications. The low fine-structure splitting of (111) QDs should make them ideal entangled photon sources; tensile-strained QDs would have dramatically reduced semiconductor band gaps, with implications for infrared optoelectronics and nanoscale band structure engineering. However, until recently it has been enormously challenging to synthesize non-(001) or tensile-strained QDs that are free from crystallographic defects.
I will introduce a robust new approach to QD self-assembly that overcomes these difficulties, and explain how using molecular beam epitaxy we can reliably and controllably grow defect-free, tensile-strained QDs on (111) and (110) surfaces. I will discuss the application of tensile-strained self-assembly to several different material systems, and present data confirming the promising properties of these novel QDs for entangled photon emission. I will also describe preliminary results in our quest to transform germanium from an indirect to a direct band gap semiconductor by taking advantage of tensile strain at the nanoscale. I believe that tensile- strained self-assembly represents a powerful new tool for heterogeneous materials integration, and nanomaterial development.

April 28, 2020 Tuesday 11:30 AM +
726 Broadway, 902, Lg Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

Astro Ph
Astro Ph

April 28, 2020 Tuesday 2:00 PM +
726 Broadway, 940, CCPP Seminar
Astrophysics and Relativity Seminars (astro)

Melodie Kao
Arizona State

TBA

April 29, 2020 Wednesday 1:00 PM +
726 Broadway, 901, Sm Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

Blanton Tinker Pullen
Blanton Tinker Pullen

April 29, 2020 Wednesday 2:00 PM +
726 Broadway, 940, CCPP Seminar
High Energy Physics Seminars (hep)

Jan Heisig
Université catholique de Louvain

April 29, 2020 Wednesday 3:30 PM +
726 Broadway, 902, Lg Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

Astroparticle Group Mtg
Astroparticle Group Mtg

April 29, 2020 Wednesday 3:30 PM +
726 Broadway, 901, Sm Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

Modjaz Group Mtg
Modjaz Group Mtg

May 1, 2020 Friday 11:00 AM +
726 Broadway, 902, Lg Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

HEP Journal Club
HEP Journal Club

May 1, 2020 Friday 1:00 PM +
726 Broadway, 902, Lg Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

NYU-CCA
NYU-CCA NYU-CCA

May 1, 2020 Friday 4:00 PM +
726 Broadway, 940, CCPP Seminar
Other Center for Cosmology and Particle Physics Events (ccpp)

PhD Defense
Oliver Janssen
NYU

TBD

May 4, 2020 Monday 3:00 PM +
726 Broadway, 901, Sm Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

NYU Time Domain
NYU Time Domain

May 5, 2020 Tuesday 11:30 AM +
726 Broadway, 902, Lg Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

Astro Ph
Astro Ph

May 5, 2020 Tuesday 2:00 PM +
726 Broadway, 940, CCPP Seminar
Astrophysics and Relativity Seminars (astro)

Frank van den Bosch
Yale

TBA

May 6, 2020 Wednesday 1:00 PM +
726 Broadway, 901, Sm Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

Blanton Tinker Pullen
Blanton Tinker Pullen

May 6, 2020 Wednesday 3:30 PM +
726 Broadway, 902, Lg Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

Astroparticle Group Mtg
Astroparticle Group Mtg

May 6, 2020 Wednesday 3:30 PM +
726 Broadway, 901, Sm Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

Modjaz Group Mtg
Modjaz Group Mtg

May 7, 2020 Thursday 4:00 PM +
726 Broadway Room 940
Physics Colloquia (colloquia)

Joanna Aizenberg
Harvard University

TBA

May 8, 2020 Friday 11:00 AM +
726 Broadway, 902, Lg Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

HEP Journal Club
HEP Journal Club

May 11, 2020 Monday 3:00 PM +
726 Broadway, 901, Sm Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

NYU Time Domain
NYU Time Domain

May 12, 2020 Tuesday 11:30 AM +
726 Broadway, 902, Lg Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

Astro Ph
Astro Ph

May 13, 2020 Wednesday 1:00 PM +
726 Broadway, 901, Sm Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

Blanton Tinker Pullen
Blanton Tinker Pullen

May 13, 2020 Wednesday 3:30 PM +
726 Broadway, 902, Lg Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

Astroparticle Group Mtg
Astroparticle Group Mtg

May 13, 2020 Wednesday 3:30 PM +
726 Broadway, 901, Sm Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

Modjaz Group Mtg
Modjaz Group Mtg

May 15, 2020 Friday 11:00 AM +
726 Broadway, 902, Lg Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

HEP Journal Club
HEP Journal Club

May 15, 2020 Friday 1:00 PM +
726 Broadway, 902, Lg Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

NYU-CCA
NYU-CCA NYU-CCA

May 20, 2020 Wednesday 1:00 PM +
726 Broadway, 901, Sm Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

Blanton Tinker Pullen
Blanton Tinker Pullen

May 20, 2020 Wednesday 3:30 PM +
726 Broadway, 902, Lg Conf
Other Center for Cosmology and Particle Physics Events (ccpp)

Astroparticle Group Mtg
Astroparticle Group Mtg