Local indistinguishability and edge modes revealed by the sub-system fidelity
We propose to use the sub-system fidelity, defined by comparing a pair of reduced density matrices, to identify and locate zero modes relating two degenerate ground states in one-dimensional interacting many-body systems, where the degeneracy arises from either symmetry protected topology (SPT), or...
| Hauptverfasser: | , , , |
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| Format: | Artikel |
| Sprache: | English |
| Veröffentlicht: |
IOP Publishing
2017-01-01
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| Schriftenreihe: | New Journal of Physics |
| Schlagworte: | |
| Online Zugang: | https://doi.org/10.1088/1367-2630/aa6a4b |