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3
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3
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0
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Is the $SU(2)$ flux defined in the context of Projective Symmetry Group(PSG) an observable quantity?
The $SU(2)$ flux defined in the context of PSG is as follows:
Consider the mean-field Hamiltonian $H_{MF}=\sum(\psi_i^\dagger\chi_{ij}\psi_j+H.c.)$ description of a 2D lattice spin-model, the ...
- 3,744
2
votes
0
answers
248
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Some questions on the Wilson loop in the projective construction?
Based on the previous question and the comment in it, imagine two different mean-field Hamiltonians $H=\sum(\psi_i^\dagger\chi_{ij}\psi_j+H.c.)$ and $H'=\sum(\psi_i^\dagger\chi_{ij}'\psi_j+H.c.)$, we ...
- 3,744
1
vote
0
answers
92
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Some question on the definition of flux in the projective construction?
Here I have some confusing points about the definition of flux in the projective construction. For example, consider the same mean-field Hamiltonian in my previous question, and assume the $2\times 2$ ...
- 3,744