11/05/2020 Quantum Matter Seminar
2020-11-05 10:30 - 12:00 (America/New_York)

11/11/2020 Quantum Matter Seminar
2020-11-11 10:30 - 12:00

12/3/2020 Quantum Matter Seminar
2020-12-03 10:30 - 12:00

12/10/2020 Quantum Matter Seminar
2020-12-10 10:30 - 12:00

12/23/2020 Quantum Matter Seminar
2020-12-22 10:30 - 12:00

1/21/2021 Quantum Matter
2021-01-21 08:30 - 10:00

1/27/2021 Quantum Matter Seminar
2021-01-27 10:30 - 12:00

1/28/2021 Quantum Matter Seminar
2021-01-28 10:30 - 2021-01-29 00:00 | Virtual

2/4/2021 Quantum Matter Seminar
2021-02-04 10:30 - 12:00

2/11/2021 Quantum Matter Seminar
2021-02-11 10:30 - 12:00

Global Anomalies on the Hilbert Space
2021-02-17 10:30 - 12:00 | Virtual
Speaker: Jaume Gomis (Perimeter PI)
Title: Global Anomalies on the Hilbert Space
Abstract: We will discuss an elementary way of detecting some global anomalies from the way the symmetry algebra is realized on the torus Hilbert space of the anomalous theory, give a physical description of the imprint of the “layers” that enter in the cobordism classification of anomalies and discuss applications, including how anomalies can imply a supersymmetric spectrum in strongly coupled (nonsupersymmetric) gauge theories.

2/18/2021 Quantum Matter Seminar
2021-02-18 10:30 - 12:00 | Virtual
Speaker: Xiao-Gang Wen (MIT)
Title: A solution to the chiral fermion problem
Abstract: Motivated by the relation between anomaly and topological/SPT order in one higher dimension, we propose a solution to the chiral fermion problem. In particular, we find several sufficient conditions, such that a chiral fermion field theory can be regularized by an interacting lattice model in the same dimension. We also discuss some related issues, such as mass without mass term, and why ‘topological’ phase transitions are usually not “topological” phase transitions.

2/24/2021 Quantum Matter Seminar
2021-02-24 10:30 - 12:00

2/25/2021 Quantum Matter Seminar
2021-02-25 10:30 - 12:00

3/3/2021 Quantum Matter Seminar
2021-03-03 10:30 - 12:00 | Virtual

3/4/2021 Quantum Matter Seminar
2021-03-04 10:30 - 12:00

3/10/2021 Quantum Matter Seminar
2021-03-10 19:30 - 21:00

3/11/2021 Quantum Matter Seminar
2021-03-11 10:30 - 12:00

Exact symmetries and threshold states in two-dimensional models for QCD
2021-03-17 10:30 - 2021-03-18 12:00
Speaker: Silviu Pufu (Princeton University)
Title: Exact symmetries and threshold states in two-dimensional models for QCD
Abstract: Two-dimensional QCD models form an interesting playground for studying phenomena such as confinement and screening. In this talk I will describe one such model, namely a 2d SU(N) gauge theory with an adjoint and a fundamental fermion, and explain how to compute the spectrum of bound states using discretized light-cone quantization at large N. Surprisingly, the spectrum of the discretized theory exhibits a large number of exact degeneracies, for which I will provide two different explanations. I will also discuss how these degeneracies provide a physical picture of confinement in 2d QCD with just a massless adjoint fermion. This talk is based on joint work with R. Dempsey and I. Klebanov.

3/18/2021 Quantum Matter Seminar
2021-03-18 12:00 - 13:30

3/24/2021 Quantum Matter seminar
2021-03-24 12:00 - 13:30

3/25/2021 Quantum Matter Seminar
2021-03-25 10:30 - 12:00

3/31/2021 Quantum Matter Seminar
2021-03-31 10:30 - 12:00

4/7/2021 Quantum Matter in Mathematics and Physics
2021-04-07 10:30 - 12:00

4/8/2021 Quantum Matter Seminar
2021-04-08 13:00 - 14:30

4/14/2021 Quantum Matter Seminar
2021-04-14 10:30 - 12:00

4/15/2021 Quantum Matter in Mathematics Seminar
2021-04-15 10:30 - 12:00

4/21/2021 Quantum Matter Seminar
2021-04-21 10:30 - 12:00 | Virtual

4/22/2021 Quantum Matter Seminar
2021-04-22 10:30 - 12:00 | Virtual

4/28/2021 Quantum Matter Seminar
2021-04-28 13:00 - 14:30
