Lattice Bisognano-Wichmann modular Hamiltonian in critical quantum spin chains
We carry out a comprehensive comparison between the exact modular Hamiltonian and the lattice version of the Bisognano-Wichmann (BW) one in one-dimensional critical quantum spin chains. As a warm-up, we first illustrate how the trace distance provides a more informative mean of comparison between...
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| Format: | Article |
| Language: | English |
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SciPost
2020-05-01
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| Series: | SciPost Physics Core |
| Online Access: | https://scipost.org/SciPostPhysCore.2.2.007 |