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Meng Cheng's user avatar
Meng Cheng's user avatar
Meng Cheng's user avatar
Meng Cheng
  • Member for 9 years, 11 months
  • Last seen this week
26 votes
Accepted

What makes a superconductor topological?

14 votes
Accepted

Second quantization and Hamiltonian diagonalization

11 votes
Accepted

Basic questions about the Kitaev chain

10 votes

How to compute the density of state from the Green function?

10 votes

How does the notion of topological order relate to the Landau-Ginzburg theory of phase transitions?

10 votes
Accepted

How projective representations can lead to 't Hooft anomalies in quantum mechanics?

9 votes
Accepted

Time reversal symmetry of transverse field Ising model

9 votes
Accepted

Difference between $\nu=5/2$ quantum Hall state, chiral p-wave superconductor, He 3

9 votes
Accepted

What is a su(2) level k algebra

8 votes

Chern-Simons action in 4 dimensions

8 votes
Accepted

Chiral anomaly in Weyl semimetal

8 votes

Can a gapless system be a topological state?

7 votes

Finite temperature correlation functions in QFT

7 votes

Superconductivity and time-reversal symmetry

7 votes
Accepted

An exactly solvable model of 2D Majorana zero modes

7 votes

Phase diagram of gauge + matter theories

7 votes

Ground state of AKLT chain invariant under time-reversal?

6 votes
Accepted

A naive question about topologically ordered wavefunction?

6 votes

braiding bosons or fermions around majorana fermion

6 votes
Accepted

How many of Kitaev's "Odds and Ends" in his 2006 anyon paper have been solved?

6 votes

What does a zero topological S matrix element mean?

6 votes
Accepted

Thermodynamic potential and partition function

5 votes
Accepted

Commutator of the Hamiltonian and crystal momentum

5 votes

Iterative projection into ground state

5 votes

At the critical point, is Kramers-Wannier duality a unitary symmetry of the model?

5 votes
Accepted

Relation between bosonization and conformal field theory

5 votes
Accepted

Pauli Matrices proof

5 votes
Accepted

Are there any known continuous (non-lattice) quantum error correction codes?

5 votes

How the Vortex containing majorana bound state is non-abelian statistics

5 votes

Band structure of topological insulators

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