User Xiao-Gang Wen

110 votes

What does it mean for a Hamiltonian or system to be gapped or gapless?

answered May 29, 2012 at 14:45

42 votes

Gauge symmetry is not a symmetry?

answered May 30, 2012 at 5:00

41 votes

Accepted

Topological Charge. What is it Physically?

answered May 7, 2013 at 11:28

36 votes

Reconciling topological insulators and topological order

answered Jul 25, 2013 at 14:50

24 votes

Accepted

How Non-abelian anyons arise in solid-state systems?

answered May 27, 2012 at 16:39

24 votes

Accepted

Understanding Elitzur's theorem from Polyakov's simple argument?

answered Mar 28, 2014 at 1:12

23 votes

Accepted

What is so topological about topological phase transitions?

answered Feb 1, 2019 at 19:49

21 votes

Why does Stephen Hawking say black holes don't exist?

answered Jan 29, 2014 at 17:06

19 votes

Definition of short range entanglement

answered Sep 18, 2014 at 13:54

19 votes

Do Category Theory and/or Quantum Logic add value in physics?

answered May 27, 2012 at 11:27

18 votes

Do topological superconductors exhibit symmetry-enriched topological order?

answered Aug 21, 2013 at 15:29

18 votes

Accepted

What does the term liquid mean in condensed matter physics?

answered Oct 5, 2012 at 0:14

16 votes

Accepted

What is the relationship between string net theory and string / M-theory?

answered May 27, 2012 at 15:36

15 votes

Are elementary particles actually more elementary than quasiparticles?

answered May 27, 2012 at 2:11

14 votes

Accepted

Majorana particles statistics

answered May 27, 2012 at 1:27

14 votes

Rigor in quantum field theory

answered May 30, 2012 at 13:10

14 votes

Accepted

Is it possible to make statements about bosonic/fermionic systems by taking the limit $\theta\to \pi$ or $\theta\to 0$, of an anyonic system?

answered Oct 31, 2012 at 14:01

14 votes

Accepted

How to understand the emergent special relativity in the superfluid?

answered May 9, 2013 at 2:38

14 votes

Accepted

Can spin-1/2 emerge as a property of quasiparticles if original description of the system was without spin?

answered Feb 14, 2015 at 0:00

13 votes

Accepted

"Topological" notions in physics

answered Feb 15, 2015 at 20:12

13 votes

Would a spin-2 particle necessarily have to be a graviton?

answered Oct 11, 2012 at 0:30

13 votes

What is an "incompressible" quantum liquid?

answered Jun 19, 2012 at 13:44

12 votes

Quantum Hall effect for dummies

answered May 27, 2012 at 3:41

12 votes

What is topological degeneracy in condensed matter physics?

answered Sep 29, 2012 at 1:20

12 votes

Accepted

What is spontaneous symmetry breaking in quantum systems?

answered Oct 14, 2015 at 4:34

12 votes

direct sum of anyons?

answered Jan 19, 2014 at 10:17

11 votes

Accepted

1D topological insulator

answered May 27, 2012 at 2:57

10 votes

Simple models that exhibit topological phase transitions

answered May 31, 2012 at 16:37

10 votes

Is integer quantum hall state long range entangled state or short range entangled?

answered Jul 3, 2016 at 11:40

10 votes

Phase Structure of (Quantum) Gauge Theory

answered Mar 9, 2014 at 13:39

Stack Exchange Network

115 Answers

What does it mean for a Hamiltonian or system to be gapped or gapless?

Gauge symmetry is not a symmetry?

Topological Charge. What is it Physically?

Reconciling topological insulators and topological order

How Non-abelian anyons arise in solid-state systems?

Understanding Elitzur's theorem from Polyakov's simple argument?

What is so topological about topological phase transitions?

Why does Stephen Hawking say black holes don't exist?

Definition of short range entanglement

Do Category Theory and/or Quantum Logic add value in physics?

Do topological superconductors exhibit symmetry-enriched topological order?

What does the term liquid mean in condensed matter physics?

What is the relationship between string net theory and string / M-theory?

Are elementary particles actually more elementary than quasiparticles?

Majorana particles statistics

Rigor in quantum field theory

Is it possible to make statements about bosonic/fermionic systems by taking the limit $\theta\to \pi$ or $\theta\to 0$, of an anyonic system?

How to understand the emergent special relativity in the superfluid?

Can spin-1/2 emerge as a property of quasiparticles if original description of the system was without spin?

"Topological" notions in physics

Would a spin-2 particle necessarily have to be a graviton?

What is an "incompressible" quantum liquid?

Quantum Hall effect for dummies

What is topological degeneracy in condensed matter physics?

What is spontaneous symmetry breaking in quantum systems?

direct sum of anyons?

1D topological insulator

Simple models that exhibit topological phase transitions

Is integer quantum hall state long range entangled state or short range entangled?

Phase Structure of (Quantum) Gauge Theory