Past Events

Subir Sachdev – Harvard Wednesday, January 14, 2026 Zoom opens: 10:30AM EST Seminar begins: 10:45AM EST CLICK HERE TO VIEW RECORDING Detecting a quantum spin liquid in the cuprate superconductors Following the prescient suggestion of P.~W.~Anderson in 1987, there were

Roderich Tumulka - Eberhard Karls University Tuebingen Wednesday, January 7, 2026 Seminar begins: 10:45AM EST CLICK HERE TO VIEW RECORDING What really lies behind the grand-canonical ensemble in quantum mechanics When textbooks introduce the grand-canonical ensemble rho=exp[-beta(H-mu_1 N_1-...-mu_r N_r)]/Z, they

Giorgio Parisi – University La Sapienza Wednesday, December 10th, 2025 Zoom opens: 10:30AM EST Seminar begins: 10:45AM EST CLICK HERE TO VIEW RECORDING On the lower Critical Dimension in spin glasses We consider systems in dimensions D in a tube

Christian Maes – KU Leuven Date/Time/Location Thursday, December 11th, 2025, 12:10 pm; Hill Center 705 Response-fluctuation relations for driven systems We discuss quasistatic response for nonequilibrium systems satisfying local detailed balance. We give the example of thermal response and an

Cedric Villani – École normale supérieure de Lyon Wednesday, December 10th, 2025 Zoom opens: 10:30AM EST Seminar begins: 10:45AM EST CLICK HERE TO VIEW RECORDING Fisher information and Boltzmann collisions Theorem: Collisions in Boltzmann's equation tend to decrease Fisher's information,

Roger Nussbaum – Professor Emeritus, Rutgers University Date/Time/Location Thursday, December 4th, 2025, 12:10 pm; Hill Center 705 The Hausdorff Dimension Spectrum of Continued Fractions and Their Generalizations If T is a nonempty set of of positive integers, denote by dim(T)

Massimo Vergassola – University of California, San Diego Wednesday, December 3rd, 2025 Zoom opens: 10:30AM EST Seminar begins: 10:45AM EST CLICK HERE TO VIEW RECORDING Defects, Parcellation, and Renormalized Negative Diffusivities in Nonhomogeneous Oscillatory Media Coupling among oscillators in spatially

Gerald Goldin – Rutgers University Date/Time/Location Thursday, November 20th, 2025, 12:10 pm; Hill Center 705 A Universal Kinematical Group for Quantum Mechanics and Some Consequent Anyonic Structures This talk first describes recent results with David Sharp (Los Alamos), where we

Tomaž Prosen – University of Ljubljana Wednesday, November 19th, 2025 Zoom opens: 10:30AM EST Seminar begins: 10:45AM EST CLICK HERE TO VIEW RECORDING (Deformed) Rule 54: Unusual Integrable Model I will discuss a fascinating example of exactly solvable reversible cellular

Avraham Soffer – Rutgers University Date/Time/Location Thursday, November 13th, 2025, 12:10 pm; Hill Center 705 Global Self-Similar solutions, Breakdown of Asymptotic Completeness-New Physics? For Schrödinger-type equations with time-dependent, spatially local interactions — including nonlinear cases — there exist solutions that

Steven Kivelson – Stanford University Wednesday, November 12th, 2025 Zoom opens: 10:30AM EST Seminar begins: 10:45AM EST CLICK HERE TO VIEW RECORDING Recent Progress on the Theory of the 2DES at larger rs Theoretical and experimental studies of two-dimensional electron

Shadi Tahvildar-Zadeh – Rutgers University Date/Time/Location Thursday, November 6th, 2025, 12:10 pm; Hill Center 705 Quantum Ping-Pong I will survey the results of several joint works with M. Kiessling, L. Frolov, and others, on the quantum-mechanical treatment of Compton scattering

Stefano Ruffo - ISC-CNR Sesto Fiorentino and SISSA, Trieste Wednesday, November 5th, 2025 Zoom opens: 10:30AM EST Seminar begins: 10:45AM EST CLICK HERE TO VIEW RECORDING Burgers equation and the Fermi-Pasta-Ulam-Tsingou lattice The study of thermalisation in isolated systems was

Michael Kiessling – Rutgers University Date/Time/Location Thursday, October 30th, 2025, 12:10 pm; Hill Center 705 Rigorous and numerical results on atomic clusters I am presenting some recent joint work with the chemist David Wales concerning atomic (and molecular) clusters. Cluster

Randall Kamien – University of Pennsylvania Wednesday, October 29th, 2025 Zoom opens: 10:30AM DST Seminar begins: 10:45AM DST CLICK HERE TO VIEW RECORDING A new classification of dislocations and disclinations Crystals and other condensed matter systems described by density waves

Henryk Iwaniec – Rutgers University Date/Time/Location Thursday, October 23rd, 2025, 12:10 pm; Hill Center 705 Recent Trends In Analytic Number Theory Abstract. Classical methods of ANT are based on Fourier analysis in R^n. Modern methods exploit harmonic analysis on hyperbolic

Abel Klein – University of California, Irvine Wednesday, October 22nd, 2025 Zoom opens: 10:30AM DST Seminar begins: 10:45AM DST CLICK HERE TO VIEW RECORDING Localization phenomena in the infinite random XXZ spin chain We show that the infinite Heisenberg XXZ

Bhargav Narayanan – Rutgers University Date/Time/Location Thursday, October 16th, 2025, 12:10 pm; Hill Center 705 Elementary symmetric polynomials under the fixed point measure I’ll talk about a surprising inequality satisfied by elementary symmetric polynomials under the action of the fixed

Christian Maes – KU Leuven Wednesday, October 15th, 2025 Zoom opens: 10:30AM DST Seminar begins: 10:45AM DST CLICK HERE TO VIEW RECORDING Kinetics of nonequilibrium response: negative heat capacity and negative drag We discuss two aspects of extended fluctuation-dissipation relations