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Heidar
  • Member for 13 years, 2 months
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5 votes
Accepted

Why $Q|0\rangle=0$ where $Q$ generates a symmetry?

5 votes

Why is the Chern number an integer?

4 votes

Needs of unitary representation for QFT

4 votes
Accepted

Constructing the "most general" two-particle spin interaction with $SU(2)$ symmetry

4 votes

How do you find conserved quantities for linear second order ODEs?

4 votes
Accepted

Gravititonal fields compared to electromagnetic fields - are they infinite in range?

3 votes
Accepted

Characters of $\widehat{\mathfrak{su}}(2)_k$ and WZW coset construction

3 votes

Why can we choose spin-1/2 degrees of freedom to commute?

3 votes
Accepted

Number of Grassmann generators for Dirac field?

2 votes

Commutation relations between fields and generators

1 vote
Accepted

Dispersion of finite 2D lattice

1 vote

Higgs mechanism and gauge symmetry

1 vote

Kac-Moody primary OPE

1 vote

On-site repulsion and Pauli exclusion

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