Generalized real-space Chern number formula and entanglement hamiltonian
We generalize a real-space Chern number formula for gapped free fermions to higher orders. Using the generalized formula, we prove recent proposals for extracting thermal and electric Hall conductance from the ground state via the entanglement Hamiltonian in the special case of non-interacting fermi...
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| Format: | Article |
| Language: | English |
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SciPost
2023-12-01
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| Series: | SciPost Physics |
| Online Access: | https://scipost.org/SciPostPhys.15.6.249 |