All Questions
4
questions
1
vote
0
answers
89
views
How does the Kalmeyer-Laughlin argument work?
I want to ask about the argument in the Kalmeyer-Laughlin paper that connects the Heisenberg Hamiltonian to a quantum Hall one. I know there is a related question about the same paper. My question is ...
- 53
0
votes
0
answers
31
views
How to get algebraic PSG solutions once we got the constraints?
The question is more technical than conceptual. I've been trying to understand the classification of spin liquids as done by Prof.Wen. I have got the constraints on IGG(Invariant gauge group) elements ...
7
votes
1
answer
4k
views
Ground state degeneracy: Spin vs Fermionic language
Let us first consider the Hamiltonian of well-known 1D periodic Ising model as
$$
H = -\frac{1}{2} \sum_{j=1}^N \sigma^x_j \sigma^x_{j+1} + \frac{h}{2}\sum_{j=1}^N \sigma^z_j.
$$
Now, in the ...
- 173
4
votes
0
answers
329
views
Chiral spin liquid flux states on the Kagome lattice
Short version:
Is it possible to arrange the fluxes for the Kagomé lattice with triangle flux $\phi_\triangle=\frac{\pi}2$ and hexagon flux $\phi_{hex}=0$ using a single unit cell?
Longer version:
I ...
- 167