NYU Arts & Science
All Scheduled Events
October 17, 2017 Tuesday 2:00 PM  +
726 Broadway, 902, Lg Conf
Other CCPP (ccpp)

Astroparticle Group Meet
Astro Meeting
NYU

Presentations about research projects Everyone is welcome to attend.


October 18, 2017 Wednesday 2:00 PM  +
726 Broadway, 940, CCPP Seminar
High Energy Physics Seminars (hep)


Cora Dvorkin
Harvard

Discovering New Physics Beyond the Standard Model with Cosmological Data Sets

Cosmological observations have provided us with answers to age-old questions, involving the age, geometry, and composition of the universe. However, there are profound questions that still remain unanswered. I will describe ongoing efforts to shed light on some of these questions. In the first part of this talk, I will explain how we can use measurements of the CMB and the large-scale structure of the universe to reconstruct the detailed physics of much earlier epochs, when the universe was only a tiny fraction of a second old. In particular, I will show how we can probe the shape of the inflationary potential, extra degrees of freedom during inflation, and the signature of possible particles with mass and spin during this period. In the last part of the talk, I will discuss how we can use observations at large scales and sub-galactic scales (through strong gravitational lensing) to improve our understanding of another open question in fundamental physics: the particle nature of dark matter.


October 18, 2017 Wednesday 3:00 PM  +
726 Broadway 871
Soft Condensed Matter Seminars (csmr)


Frank Scheffold

Rheology, structure and internal dynamics of soft colloids across the glass and the jamming regimes

We investigate structural, dynamical and rheological properties of moderately polydisperse emulsions and microgel colloids across an extended range of volume fractions φ, encompassing fluid and glassy states up to jamming. In this talk, I will present results from rheometry, light scattering and DWS, tweezer microrheology and 3D fluorescent microscopy measurements. For volume fractions around φ=0.6 we identify multiple signatures of the glass transition, analyzing both dynamical and structural quantities, highlighting a connection between the dynamic slowing down and growing dynamical and structural correlation lengths. We also study the local nonlinear response by perfomring active microrheology in the glass applying a force on a probe particle embedded in the emulsion. At higher densities φ>0.64, at and above the jamming transition, we oberserve a sharp increase of the shear modulus probed by rheometry and DWS. The glassy regime and the transition toward a dense amorphous phase is well described by a simple predictive model of linear shear elastic modulus taking into account entropic and elastic contributions to the free energy. While the elastic deformation of jammed and compressed emulsion droplets is fairly well understood, this is not the case for dense assemblies of ‘fuzzy’ polymer microgel spheres. To study the density profile and shape of soft microgels 'in-situ', we employ dSTORM superresolution microscopy [5,6]. As we demonstrate this allows us to monitor 'live' the change in microstructure across the volume phase transition when particles are swelling and deswelling. Moreover, we can observe shape changes, such as faceting and weak interpenetration, in dense and highly overpacked microgel systems up to effective voluem fractions of 300%.


October 18, 2017 Wednesday 4:00 PM  +
726 Broadway, 902, Lg Conf
Other CCPP (ccpp)

Astro-Ph
Astro-Ph Astro-Ph
NYU



October 19, 2017 Thursday 4:00 PM  +
Meyer 122
Physics Colloquia (colloquia)


Katepalli Sreenivasan
New York University

TBA



October 20, 2017 Friday 11:00 AM  +
726 Broadway, 940, CCPP Seminar
Astrophysics and Relativity Seminars (astro)


Julie Comerford
University of Colorado - Boulder

AGN Fueling and Feedback in Galaxies

Over the last 20 years, observations have revealed surprisingly tight correlations between the properties of galaxies and their supermassive black holes. AGN have emerged as key players in this coevolution of galaxies and supermassive black holes, by two primary mechanisms: AGN fueling and AGN feedback. Supermassive black holes build up mass by accreting gas during AGN fueling, while AGN feedback is a crucial regulator of star formation that controls the mass growth of the galaxies. I will present multiwavelength studies of both AGN fueling and feedback, using data from HST, Chandra, VLA, and Keck. In particular, I will discuss whether moderate luminosity AGN contribute to feedback, where in a galaxy merger AGN fueling occurs, and whether galaxy mergers preferentially fuel the most luminous AGN.


October 20, 2017 Friday 11:00 AM  +
726 Broadway, 940, CCPP Seminar
Astrophysics and Relativity Seminars (astro)


Julie Comerford
U of Colorado

Supermassive Black Hole Fueling and Feedback in Galaxies

Over the last 20 years, observations have revealed surprisingly tight correlations between the properties of galaxies and their supermassive black holes. Active galactic nuclei (AGN) have emerged as key players in this coevolution of galaxies and supermassive black holes, by two primary mechanisms: AGN fueling and AGN feedback. Supermassive black holes build up mass by accreting gas during AGN fueling, while AGN feedback is a crucial regulator of star formation that controls the mass growth of the galaxies. I will present multiwavelength studies of both AGN fueling and feedback, using data from HST, Chandra, VLA, and Keck. In particular, I will discuss whether moderate luminosity AGN contribute to feedback, where in a galaxy merger AGN fueling occurs, and whether galaxy mergers preferentially fuel the most luminous AGN.


October 20, 2017 Friday 4:00 PM  +
726 Broadway, 902, Lg Conf
Other CCPP (ccpp)

Astro-Ph
Astro-Ph Astro-Ph
NYU



October 20, 2017 Friday 6:00 PM  +
726 Broadway, 940, CCPP Seminar
Other CCPP (ccpp)

ISC
ISC ISC
NYU

ISC or Intellectually Stimulating Craic is a weekly seminar for Graduate and Undergraduate students that encourages the interdisciplinary exchange of ideas within the physics department. The rules are simple: 1. No physics. 2. The talk topic is classified until the last moment.


October 23, 2017 Monday 12:30 PM  +
726 Broadway, 940, CCPP Seminar
Other CCPP (ccpp)

CCPP Brown Bag
Massimo Porrati



October 23, 2017 Monday 2:45 PM  +
726 Broadway, 902, Lg Conf
Other CCPP (ccpp)

Group Meeting
Blanton, Pullen
NYU



October 23, 2017 Monday 4:00 PM  +
726 Broadway, 902, Lg Conf
Other CCPP (ccpp)

CCPP Happy Hour
CCPP Hour
NYU

Talk Physics and enjoy some snacks and beverages!!


October 24, 2017 Tuesday 2:00 PM  +
726 Broadway, 902, Lg Conf
Other CCPP (ccpp)

Astroparticle Group Meet
Astro Meeting
NYU

Presentations about research projects Everyone is welcome to attend.


October 24, 2017 Tuesday 3:00 PM  +
726 Broadway, 940, CCPP Seminar
Other CCPP (ccpp)

Informal HEP Talk
Christopher Hull
Imperial College, London UK

TBA



October 25, 2017 Wednesday 2:00 PM  +
726 Broadway, 940, CCPP Seminar
High Energy Physics Seminars (hep)


David Curtin
UMD/ University of Toronto

TBA

TBA


October 25, 2017 Wednesday 3:00 PM  +
726 Broadway, room 871
Soft Condensed Matter Seminars (csmr)


Sascha Hilgenfeldt
University of Ilinois

Morphology and Mechanics: States of Cellular Matter from Tilings to Tissues

The term Cellular Matter denotes materials consisting of separate neighboring domains that fill space in two or three dimensions. Whether ordered or disordered, the domain structure is a crucial factor in understanding overall material properties ranging from mechanical elasticity to long-time aging. Important examples include foams, emulsions, polycrystals, and biological tissues. In all cases, the discrete domain structure poses challenges to both the statistical description of the morphology and to the mechanical description of equilibrium (stable) or non-equilibrium (metastable) material states. The talk presents an overview of our work exploring the relations between domain geometry, domain statistics, and mechanical energy of the cellular system, predominantly in the context of foams and biological tissue, but developing a broader view of systems with more general energy functionals dominated by interfacial terms. It is shown that simple modeling ideas on local structure can analytically explain long-standing empirical correlations between moments of size and topology distributions in disordered cellular matter, such as Lewis’ Law. Combined with a leading order model of the mechanical energy contributions of the cellular interfaces, a connection emerges between the mechanical properties of the tissue, the statistical description of its structure, and the geometry of individual domains (cells). In epidermal tissue, the equilibrium state found in experiments corresponds to mechanically relaxed configurations of this material. In ordered epithelia, the presence of defects provides a sensitive measure for long-range spatial patterns, leading to the discovery of new organizational features in the eye of Drosophila. Extending this model by adding of one additional statistical moment allows for the quantification not just of near-equilibrium, but of metastable non-equilibrium states for an entire class of interfacial energy functionals. Potential applications of such analytical tools include the non-invasive diagnostics of pathological tissue changes as well as of tissue morphogenetic development, whether in vivo or in regenerative medicine.


October 25, 2017 Wednesday 4:00 PM  +
726 Broadway, 902, Lg Conf
Other CCPP (ccpp)

Astro-Ph
Astro-Ph Astro-Ph
NYU



October 26, 2017 Thursday 12:30 PM  +
726 Broadway, 940, CCPP Seminar
Other CCPP (ccpp)

Informal HEP Talk
Mehrdad Mirbabayi
ICTP, Trieste



October 26, 2017 Thursday 4:00 PM  +
Meyer 122
Physics Colloquia (colloquia)


Dmitry Rinberg
New York University

TBA



October 27, 2017 Friday 11:00 AM  +
726 Broadway, 940, CCPP Seminar
Astrophysics and Relativity Seminars (astro)


Renee Hlozek
Dunlap Institute, Univ. of Toronto

New cosmology with small-scale CMB data: ultra light dark matter, isocurvature and cosmic voids

Cosmology with the Cosmic Microwave Background (CMB) is currently undergoing a data-rich epoch, with measurements on small angular scales from experiments like the Atacama Cosmology Telescope (ACT) and its polarisation instrument, ACTPol, adding to measurements on larger scales by Planck, WMAP and BICEP. I will contextualise the measurements and present constraints on cosmological models of interest to small-scale experiments; while noting that foregrounds that complicate our measurements of the primordial microwave sky. I'll focus on some novel constraints on the axion, an ultra-light dark matter candidate, and also on tests of the thermal Sunyaev-Zeld'ovich effect from cosmic voids. I will highlight the next generation of the experiments in the Simons Observatory and the Fourth Stage CMB experiment (CMB S4): ensuring CMB cosmology has a rich future to look forward to on the ground.


October 27, 2017 Friday 2:30 PM  +
726 Broadway, 902, Lg Conf
Other CCPP (ccpp)

Machine Learning JC
Machine JC

Machine Learning Journal Club - Held every 2 weeks. Contact: Siavash Golkar


October 27, 2017 Friday 4:00 PM  +
726 Broadway, 902, Lg Conf
Other CCPP (ccpp)

Astro-Ph
Astro-Ph Astro-Ph
NYU



October 27, 2017 Friday 6:00 PM  +
726 Broadway, 940, CCPP Seminar
Other CCPP (ccpp)

ISC
ISC ISC
NYU

ISC or Intellectually Stimulating Craic is a weekly seminar for Graduate and Undergraduate students that encourages the interdisciplinary exchange of ideas within the physics department. The rules are simple: 1. No physics. 2. The talk topic is classified until the last moment.


October 30, 2017 Monday 12:30 PM  +
726 Broadway, 940, CCPP Seminar
Other CCPP (ccpp)

CCPP Brown Bag
Andrew MacFadyen



October 30, 2017 Monday 2:45 PM  +
726 Broadway, 902, Lg Conf
Other CCPP (ccpp)

Group Meeting
Blanton, Pullen
NYU



October 30, 2017 Monday 3:00 PM  +
726 Broadway, 940, CCPP Seminar
Other CCPP (ccpp)

Informal HEP Talk
Yu-Dai Tsai
Cornell

tba



October 30, 2017 Monday 4:00 PM  +
726 Broadway, 902, Lg Conf
Other CCPP (ccpp)

CCPP Happy Hour
CCPP Hour
NYU

Talk Physics and enjoy some snacks and beverages!!


October 31, 2017 Tuesday 11:00 AM  +
726 Broadway, CQP Conference Room 1067
Condensed Matter Physics Seminars (cmp)


Sebastian Will
Columbia University and Massachusetts Institute of Technology

Quantum Control of Ultracold Dipolar Molecules

Ultracold molecules open up new routes for precision measurements, quantum information processing and many-body quantum physics. In particular, dipolar molecules with long-range interactions promise the creation of novel states of matter, such as topological superfluids and quantum crystals. Dipolar molecules can be efficiently assembled from ultracold atoms. Using this approach we created the first near-degenerate gases of strongly dipolar sodium- potassium (NaK) molecules [1]. At temperatures as low as few hundred nanokelvin, we prepare spin-polarized molecular ensembles, in which each molecule occupies the rovibrational and hyperfine ground state.
I will discuss our advances on coherent quantum control in ultracold NaK molecules. Starting from the absolute ground state, we demonstrate coherent microwave coupling into higher rotational and hyperfine states [2]. Furthermore, we create superpositions between the lowest hyperfine states of NaK and observe coherence times on the scale of one second, enabling precision Ramsey spectroscopy with Hertz-level resolution [3]. These results suggest new possibilities for precision metrology and quantum information. I will conclude with an outlook on future prospects of molecular quantum gases.
[1] PRL 114, 205302 (2015)
[2] PRL 116, 225306 (2016)
[3] Science 357, 372-375 (2016)


October 31, 2017 Tuesday 2:00 PM  +
726 Broadway, 902, Lg Conf
Other CCPP (ccpp)

Astroparticle Group Meet
Astro Meeting
NYU

Presentations about research projects Everyone is welcome to attend.


November 1, 2017 Wednesday 2:00 PM  +
726 Broadway, 940, CCPP Seminar
High Energy Physics Seminars (hep)


Tom Banks
Rutgers

TBA



November 1, 2017 Wednesday 4:00 PM  +
726 Broadway, 902, Lg Conf
Other CCPP (ccpp)

Astro-Ph
Astro-Ph Astro-Ph
NYU



November 2, 2017 Thursday 11:00 AM  +
726 Broadway, 940, CCPP Seminar
Other CCPP (ccpp)

Informal Astro Talk
Elena Giusarma
Carnegie Mellon University

TBA (Neutrinos and Cosmology)



November 2, 2017 Thursday 11:00 AM  +
CQP conference room #1067
Condensed Matter Physics Seminars (cmp)


Miles Stoudenmire
Flatiron Institute

TBA



November 2, 2017 Thursday 4:00 PM  +
Meyer 122
Physics Colloquia (colloquia)


Raphael Bousso
University of California, Berkeley

Black Holes, Quantum Information, and Unification

The study of black holes has revealed a deep connection between quantum information and spacetime geometry. Its origin must lie in a quantum theory of gravity, so it offers a valuable hint in our search for a unified theory. Precise formulations of this relation recently led to new insights in Quantum Field Theory, some of which have been rigorously proven. An important example is our discovery of the first universal lower bound on the local energy density. The energy near a point can be negative, but it is bounded below by a quantity related to the information flowing past the point.


November 3, 2017 Friday 11:00 AM  +
726 Broadway, 940, CCPP Seminar
Astrophysics and Relativity Seminars (astro)


James Peebles
Princeton University

A Tale of Two Theories: Dark Matter in the 1970s, Galaxies Today



November 3, 2017 Friday 4:00 PM  +
726 Broadway, 902, Lg Conf
Other CCPP (ccpp)

Astro-Ph
Astro-Ph Astro-Ph
NYU



November 3, 2017 Friday 6:00 PM  +
726 Broadway, 940, CCPP Seminar
Other CCPP (ccpp)

ISC
ISC ISC
NYU

ISC or Intellectually Stimulating Craic is a weekly seminar for Graduate and Undergraduate students that encourages the interdisciplinary exchange of ideas within the physics department. The rules are simple: 1. No physics. 2. The talk topic is classified until the last moment.


November 6, 2017 Monday 12:30 PM  +
726 Broadway, 940, CCPP Seminar
Other CCPP (ccpp)

CCPP Brown Bag
TBA TBA



November 7, 2017 Tuesday 11:00 AM  +
726 Broadway, 940, CCPP Seminar
Other CCPP (ccpp)

Informal Astro Talk
Song Huang
UC-Santa Cruz

Massive Galaxies

TBA


November 7, 2017 Tuesday 2:00 PM  +
726 Broadway, 902, Lg Conf
Other CCPP (ccpp)

Astroparticle Group Meet
Astro Meeting
NYU

Presentations about research projects Everyone is welcome to attend.


November 8, 2017 Wednesday 2:00 PM  +
726 Broadway, 940, CCPP Seminar
High Energy Physics Seminars (hep)


Tongyan Lin
UC Berkeley

tba



November 9, 2017 Thursday 4:00 PM  +
Meyer 122
Physics Colloquia (colloquia)


Laura Newburgh
Yale University

New Probes of Old Structure: Cosmology with 21cm Intensity Mapping and the Cosmic Microwave Background

Current cosmological measurements have left us with deep questions about our Universe: What caused the expansion of the Universe at the earliest times? How did structure form? What is Dark Energy and does it evolve with time? New experiments like CHIME, HIRAX, and ACTPol are poised to address these questions through 3-dimensional maps of structure and measurements of the polarized Cosmic Microwave Background. In this talk, I will describe how we will use 21cm intensity measurements from CHIME and HIRAX to place sensitive constraints on Dark Energy between redshifts 0.8 -- 2.5, a poorly probed era corresponding to when Dark Energy began to impact the expansion history of the Universe. I will also discuss how we will use data from new instruments on the ACT telescope to constrain cosmological parameters like the total neutrino mass and probe structure at late times.


November 10, 2017 Friday 11:00 AM  +
726 Broadway, 940, CCPP Seminar
Astrophysics and Relativity Seminars (astro)


Matias Zaldarriaga
Institute for Advanced Study

TBA (Theoretical Cosmology)



November 10, 2017 Friday 6:00 PM  +
726 Broadway, 940, CCPP Seminar
Other CCPP (ccpp)

ISC
ISC ISC
NYU

ISC or Intellectually Stimulating Craic is a weekly seminar for Graduate and Undergraduate students that encourages the interdisciplinary exchange of ideas within the physics department. The rules are simple: 1. No physics. 2. The talk topic is classified until the last moment.


November 13, 2017 Monday 12:30 PM  +
726 Broadway, 940, CCPP Seminar
Other CCPP (ccpp)

CCPP Brown Bag
TBA TBA



November 13, 2017 Monday 3:00 PM  +
726 Broadway, 940, CCPP Seminar
Other CCPP (ccpp)

Informal HEP Talk
Andrei Khmelnitsky
ICTP

TBA



November 14, 2017 Tuesday 11:00 AM  +
726 Broadway, Room 1067, CQP Conference Room
Condensed Matter Physics Seminars (cmp)


Jeremy Levy
University of Pittsburgh

Correlated Nanoelectronics

The study of strongly correlated electronic systems and the development of quantum transport in nanoelectronic devices have followed distinct, mostly non-overlapping paths. Electronic correlations of complex materials lead to emergent properties such as superconductivity, magnetism, and Mott insulator phases. Nanoelectronics generally starts with far simpler materials (e.g., carbon-based or semiconductors) and derives functionality from doping and spatial confinement to two or fewer spatial dimensions. In the last decade, these two fields have begun to overlap. The development of new growth techniques for complex oxides have enabled new families of heterostructures which can be electrostatically gated between insulating, ferromagnetic, conducting and superconducting phases. In my own research, we use a scanning probe to “write” and “erase” conducting nanostructures at the LaAlO3/SrTiO3 interface. The process is similar to that of an Etch-a-Sketch toy, but with a precision of two nanometers. A wide variety of nanoscale devices have already been demonstrated, including nanowires, nanoscale photodetectors, THz emitters and detectors, tunnel junctions, diodes, field-effect transistors, single-electron transistors, superconducting nanostructures and ballistic electron waveguides. These building blocks may form the basis for novel technologies, including a platform for complex-oxide-based quantum computation and quantum simulation.


November 14, 2017 Tuesday 2:00 PM  +
726 Broadway, 902, Lg Conf
Other CCPP (ccpp)

Astroparticle Group Meet
Astro Meeting
NYU

Presentations about research projects Everyone is welcome to attend.


November 15, 2017 Wednesday 2:00 PM  +
726 Broadway, 940, CCPP Seminar
High Energy Physics Seminars (hep)


Jared Kaplan
Johns Hopkins

tba



November 17, 2017 Friday 11:00 AM  +
726 Broadway, 940, CCPP Seminar
Astrophysics and Relativity Seminars (astro)


Sarah Pearson
Columbia University

TBA (Milky Way dynamics)

TBA


November 17, 2017 Friday 6:00 PM  +
726 Broadway, 940, CCPP Seminar
Other CCPP (ccpp)

Other
ISC ISC
NYU

ISC or Intellectually Stimulating Craic is a weekly seminar for Graduate and Undergraduate students that encourages the interdisciplinary exchange of ideas within the physics department. The rules are simple: 1. No physics. 2. The talk topic is classified until the last moment.


November 20, 2017 Monday 12:30 PM  +
726 Broadway, 940, CCPP Seminar
Other CCPP (ccpp)

CCPP Brown Bag
TBA TBA



November 21, 2017 Tuesday 12:30 PM  +
726 Broadway, 940, CCPP Seminar
Other CCPP (ccpp)

Informal HEP Talk
Gabriel Lee
Technion

tba



November 21, 2017 Tuesday 2:00 PM  +
726 Broadway, 902, Lg Conf
Other CCPP (ccpp)

Astroparticle Group Meet
Astro Meeting
NYU

Presentations about research projects Everyone is welcome to attend.


November 22, 2017 Wednesday 2:00 PM  +
726 Broadway, 940, CCPP Seminar
High Energy Physics Seminars (hep)


Alexander Zhiboedov
Harvard

TBA



November 28, 2017 Tuesday 2:00 PM  +
726 Broadway, 902, Lg Conf
Other CCPP (ccpp)

Astroparticle Group Meet
Astro Meeting
NYU

Presentations about research projects Everyone is welcome to attend.


November 29, 2017 Wednesday 2:00 PM  +
726 Broadway, 940, CCPP Seminar
High Energy Physics Seminars (hep)


Michael Douglas
SUNY

TBA



December 1, 2017 Friday 11:00 AM  +
726 Broadway, 940, CCPP Seminar
Astrophysics and Relativity Seminars (astro)


Vera Gluscevic
Institute for Advanced Study

TBA (Theoretical Cosmology)



December 1, 2017 Friday 6:00 PM  +
726 Broadway, 940, CCPP Seminar
Other CCPP (ccpp)

ISC
ISC ISC
NYU

ISC or Intellectually Stimulating Craic is a weekly seminar for Graduate and Undergraduate students that encourages the interdisciplinary exchange of ideas within the physics department. The rules are simple: 1. No physics. 2. The talk topic is classified until the last moment.


December 5, 2017 Tuesday 2:00 PM  +
726 Broadway, 902, Lg Conf
Other CCPP (ccpp)

Astroparticle Group Meet
Astro Meeting
NYU

Presentations about research projects Everyone is welcome to attend.


December 6, 2017 Wednesday 2:00 PM  +
726 Broadway, 940, CCPP Seminar
High Energy Physics Seminars (hep)


Sebastian Franco
CCNY

TBA



December 7, 2017 Thursday 11:00 AM  +
726 Broadway, 940, CCPP Seminar
Other CCPP (ccpp)

Informal Astro Talk
Alessandro Sonnenfeld
IMPU

A Bayesian hierarchical inference method for galaxy-galaxy lensing

TBA


December 7, 2017 Thursday 4:00 PM  +
Meyer 122
Physics Colloquia (colloquia)


Eli Rotenberg
Lawrence Berkeley Lab

TBA



December 8, 2017 Friday 11:00 AM  +
726 Broadway, 940, CCPP Seminar
Astrophysics and Relativity Seminars (astro)


Ilsedore Cleeves
Center for Astronomy, Harvard University

TBA (planetary astronomy)



December 8, 2017 Friday 6:00 PM  +
726 Broadway, 940, CCPP Seminar
Other CCPP (ccpp)

ISC
ISC ISC
NYU

ISC or Intellectually Stimulating Craic is a weekly seminar for Graduate and Undergraduate students that encourages the interdisciplinary exchange of ideas within the physics department. The rules are simple: 1. No physics. 2. The talk topic is classified until the last moment.


December 12, 2017 Tuesday 2:00 PM  +
726 Broadway, 902, Lg Conf
Other CCPP (ccpp)

Astroparticle Group Meet
Astro Meeting
NYU

Presentations about research projects Everyone is welcome to attend.


December 13, 2017 Wednesday 2:00 PM  +
726 Broadway, 940, CCPP Seminar
High Energy Physics Seminars (hep)


Erich Poppitz
Toronto U.

TBA



December 15, 2017 Friday 11:00 AM  +
726 Broadway, 940, CCPP Seminar
Astrophysics and Relativity Seminars (astro)


Alyson Brooks
Rutgers University

TBA (Galaxy Evolution)



December 15, 2017 Friday 6:00 PM  +
726 Broadway, 940, CCPP Seminar
Other CCPP (ccpp)

ISC
ISC ISC
NYU

ISC or Intellectually Stimulating Craic is a weekly seminar for Graduate and Undergraduate students that encourages the interdisciplinary exchange of ideas within the physics department. The rules are simple: 1. No physics. 2. The talk topic is classified until the last moment.


January 19, 2018 Friday 11:00 AM  +
Meyer 5th Fl. CCPP Lounge
Astrophysics and Relativity Seminars (astro)


[none] [none]

[none]

No seminar this week; competing event at Flatiron CCA


January 24, 2018 Wednesday 2:00 PM  +
726 Broadway, 940, CCPP Seminar
High Energy Physics Seminars (hep)


Thomas Bachlechner
Columbia

TBA



January 31, 2018 Wednesday 2:00 PM  +
726 Broadway, 940, CCPP Seminar
High Energy Physics Seminars (hep)


Marcus Spradlin
IAS

TBA



February 1, 2018 Thursday 4:00 PM  +
Meyer 122
Physics Colloquia (colloquia)


Andre de Gouvea
Northwestern University

TBA



February 8, 2018 Thursday 4:00 PM  +
Meyer 122
Physics Colloquia (colloquia)


Amir Yacoby
Harvard University

TBA



February 9, 2018 Friday 11:00 AM  +
726 Broadway, 940, CCPP Seminar
Astrophysics and Relativity Seminars (astro)


Jackie Faherty
AMNH

TBA (low-mass stars)



March 22, 2018 Thursday 4:00 PM  +
Meyer 122
Physics Colloquia (colloquia)


Steven Gubser
Princeton University

TBA



April 5, 2018 Thursday 4:00 PM  +
Meyer 122
Physics Colloquia (colloquia)


Massimiliano Di Ventra
University of California, San Diego

MemComputing: A Brain-inspired Topological Computing Paradigm

Which features make the brain such a powerful and energy-efficient computing machine? Can we reproduce them in the solid state, and if so, what type of computing paradigm would we obtain? I will show that a machine that uses memory to both process and store information, like our brain, and is endowed with intrinsic parallelism and information overhead - namely takes advantage, via its collective state, of the network topology related to the problem - has a computational power far beyond our standard digital computers [1]. We have named this novel computing paradigm “memcomputing” [2, 3]. As examples, I will show the polynomial-time solution of prime factorization, the search version of the subset-sum problem, and approximations to the Max-SAT beyond the inapproximability limit using polynomial resources and self-organizing logic gates, namely gates that self-organize to satisfy their logical proposition [4]. I will also demonstrate that these machines are described by a Witten-type topological field theory, and they compute via an instantonic phase, implying that they are robust against noise and disorder [5]. The digital memcomputing machines that we propose can be efficiently simulated, are scalable and can be easily realized with available nanotechnology components, and may help reveal aspects of computation of the brain.

[1] F. L. Traversa and M. Di Ventra, Universal Memcomputing Machines, IEEE Transactions on Neural Networks and Learning Systems 26, 2702 (2015).
[2] M. Di Ventra and Y.V. Pershin, Computing: the Parallel Approach, Nature Physics 9, 200 (2013).
[3] M. Di Ventra and Y.V. Pershin, Just add memory, Scientific American 312, 56 (2015).
[4] F. L. Traversa and M. Di Ventra, Polynomial-time solution of prime factorization and NP-complete problems with digital memcomputing machines, Chaos: An Interdisciplinary Journal of Nonlinear Science 27, 023107 (2017).
[5] M. Di Ventra, F. L. Traversa and I.V. Ovchinnikov, Topological field theory and computing with instantons, Annalen der Physik 1700123 (2017).



April 12, 2018 Thursday 4:00 PM  +
Meyer 122
Physics Colloquia (colloquia)


Steve Girvin
Yale University

TBA



April 13, 2018 Friday 11:00 AM  +
726 Broadway, 940, CCPP Seminar
Astrophysics and Relativity Seminars (astro)


Chris Hayward
Flatiron Institute

TBA (galaxy formation)



April 19, 2018 Thursday 4:00 PM  +
Meyer 122
Physics Colloquia (colloquia)


Vicky Kalogera
Northwestern University

TBA



April 26, 2018 Thursday 4:00 PM  +
Meyer 122
Physics Colloquia (colloquia)


Andrew Geraci
Northwestern University

TBA



May 3, 2018 Thursday 4:00 PM  +
Meyer 122
Physics Colloquia (colloquia)


Priyamvada Natarajan
Yale University

TBA