I have given over 100 invited talks at university seminars, international conferences and workshops. Some of them are available online, with links posted below.

  • "Space-time reflection symmetry enriched topological phases of matter," Physics Seminar, October 2017

  • "Defects in Topologically Ordered Quantum Matter," Topological Phases of Matter Program Seminar, June 2013

Talks at KITP

  • "Time reversal and reflection symmetry in (2+1)D SETs," KITP Conference on Topological Quantum Matter, October 2016

  • "Characterizing symmetry-enriched topological states in (2+1)D," KITP Program on Symmetry, Topology, and Quantum Phases of Matter: From tensor networks to physics realizations, September 2016

  • "Creating and manipulating topologically protected degeneracies through gapped boundaries," KITP Program on Synthetic Quantum Matter, September 2016

  • "Dissipationless phonon Hall viscosity," KITP Program on Topological Insulators and Superconductors, October 2011

  • "Defects in Topologically Ordered Quantum Matter," Conference on Emergence and Entanglement II, May 2013

  • "Defects: A New Window into Topological Quantum Matter," Colloquium, October 2014

  • "Absolute anomalies of (2+1)D symmetry-enriched topological states," Fractons and Beyond, January 2020

  • "Realizing Modular Transformations in Physical Systems," Conference on Geometrical Degrees of Freedom in Topological Phases, August 2016

  • " Particle-Hole Symmetry and the Composite Fermi Liquid," Strongly Interacting Topological Phases Conference, September 2015

Other online talks posted on YouTube

Relative anomalies in (2+1)D symmetry-enriched topological states,

workshop on “Topological Aspects of Condensed Matter,” Harvard Center for Mathematical Sciences and Applications, Harvard University, April 2019

Space-time reflection anomalies in (2+1)D topological quantum field theories,

String-Math 2018, Tohoku University, Sendai, Japan, June 2018

New topological invariants and quantized geometric response theory for FQH states with crystalline symmetries,

International conference on “Emergent phenomena in quantum Hall systems,” Princeton University, May 21, 2021

(Talk starts at 1:14:15)

Measurement-induced topological entanglement transitions in random

quantum circuits

"Quantum," Janet Das Sarma Conference Series, CMTC, UMD, May 17, 2021

(Talk starts at 59:30)

Absolute anomalies in (2+1)D SETs and exact (3+1)D constructions

Harvard Center for Mathematical Sciences and Applications, September10, 2020

Crystalline gauge fields and quantized discrete geometric response theory

Ultra Quantum Matter Simons Collaboration Seminar Series, August 25, 2020

Boundaries, defects, and exotic zero modes in topological phases

Summer School on "Emergent Phenomena in Quantum Materials," Cornell University August 2015