Topology and Dynamics in Quantum Matter Workshop

On September 10-11, 2019, the CMSA will be hosting a second workshop on Topological Aspects of Condensed Matter.

New ideas rooted in topology have recently had a major impact on condensed matter physics, and have led to new connections with high energy physics, mathematics and quantum information theory.  The aim of this program will be to deepen these connections and spark new progress by fostering discussion and new collaborations within and across disciplines.

Topics include i) the classification of topological states  ii) topological orders in two and three dimensions including quantum spin liquids, quantum Hall states and fracton phases and iii)  interplay of symmetry and topology in quantum many body systems, including symmetry protected topological phases, symmetry fractionalization and anomalies iv) topological phenomena in quantum systems  driven far from equlibrium v) quantum field theory approaches to topological matter.

This workshop is part of the CMSA’s program on Program on Topological Aspects of Condensed Matter, and is the second of two workshops, in addition to a visitor program and seminars.

The workshop will be held in room G10 of the CMSA, located at 20 Garden Street, Cambridge, MA.

Click here for a list of restaurants in the area. 

Organizers: Michael Hermele (CU Boulder) and Ashvin Vishwanath (Harvard)

Partial list of speakers:

Videos of the lectures can be found in the Youtube playlist below. Links to talks are also available on the schedule below. 

Tuesday, September 10

8:30 – 9:00 am Breakfast

9:00 – 9:05 am  Welcome

Session 1: Topological Matter and High Energy Physics

9:05 – 9:15 am  Moderator: Dan Harlow, MIT Video

9:15 – 9:40 am

Zohar Komargodski, SUNY

Video

The long-distance physics of Yang-Mills theory in 2+1 Dimensions

9:40 – 10:05 am

Cumrun Vafa, Harvard

Video

On Uniqueness of Quantum Gravity

10:05 – 10:30 am 

Nima Arkani-Hamed, IAS

Video

Spacetime, Quantum Mechanics, and Combinatorial Topology at Infinity

10:30 – 11:05 am  Break 

Session 2: Topological Phases in Quantum Matter 1

11:05 – 11:15 am  Moderator: John McGreevy, UCSD Video

11:15 – 11:40 am

Anton Kapustin, Caltech

Video

The absence of equilibrium currents and chiral anomalies

11:40 – 12:05 pm

Prineha Narang Harvard

Video

First principles Design of topological matter

12:05 – 12:30 pm

Ying Ran, Boston College

Video

Nonlinear thermoelectric effects and the many-body Berry curvature dipole

12:30 – 2:00 pm Lunch

Session 3: Postdoc/Student Talks

Moderator: Ashvin Vishwanath

2:00 – 3:00 pm 

Postdoc/Student Talks
Video

Wenjie Ji (MIT), 

Xueda Wen (MIT),Distinguish modular categories beyond modular data”

Nat Tantivasadakarn (Harvard),

Juven Wang (Harvard CMSA) “Higher Anomalies, Symmetries, and Cobordisms: 4d Yang-Mills theory and 5d higher-gauge TQFT”

3:00 – 3:30 pm Break

Session 4: Topology in Particle Theory and Mathematics

3:30 – 3:40 pm  Moderator: Ryan Thorngren, CMSA-Harvard

3:40 – 4:05 pm 

Meng Cheng, Yale

Video 

Global symmetry and anomaly in (1+1) d conformal field theories

4:05 – 4:30 pm

Dan Freed, UT Austin

Video

Gapped boundary theories for 3d Chern-Simons

4:30 – 4:55 pm

Zhenghan Wang, Station Q

Video

Topological physics beyond anyons: fractons and black holes

 

Wednesday, September 11

8:30 – 9:15 am Breakfast

Session 5: Postdoc/Student Talks

Moderator: Yizhuang You

9:15 – 10:30 am 

Postdoc/Student Talks

Video

Grisha Tarnopolskyy (Harvard), Origin of magic angles in TBG

Eslam Khalaf (Harvard), 

Dominic Else (MIT), Topological phases of matter protected by time-translation symmetries with multi-dimensional “time”

Jong Yeon Lee (Harvard)

10:30 – 11:00 am Break

Session 6:  Topological Phases of Matter 2

11:00 – 11:10 am Moderator: Ashvin Vishwanath, Harvard

11:10 – 11:35am 

Jennifer Cano, SUNY

Video

Topological Quantum Chemistry

11:35am – 12:00

Chong Wang Perimeter

Video

A duality between band topology and quantum magnetism

12:00 – 12:25 pm

Shinsei Ryu, Chicago

Video

Effective field theory approach to Floquet topological systems”

12:25 – 2:00 pm Lunch

Session 7: Tensor Networks, Fractons, etc. 

2:00 – 2:10 pm Moderator: Mike Hermele, Boulder Video

2:10 – 2:35 pm

John McGreevy, UCSD

Video

Disentangling Quantum Matter

2:35 – 3:00 pm

Lukasz Fidkowski, UW

Video

Disentangling the Generalized Double Semion Model

3:00 – 3:25 pm

Jeongwan Haah, Microsoft

Video

Quantum cellular automata in three dimensions

3:25 – 3:30  Conclusion

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