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Title:

Finite-temperature entanglement negativity of fermionic symmetry-protected topological phases and quantum critical points in one dimension

Document type:
Zeitschriftenaufsatz
Author(s):
Choi, Wonjune; Knap, Michael; Pollmann, Frank
Abstract:
We study the logarithmic entanglement negativity of symmetry-protected topological (SPT) phases and quantum critical points (QCPs) of one-dimensional noninteracting fermions at finite temperatures. In particular, we consider a free fermion model that realizes not only quantum phase transitions between gapped phases but also an exotic topological phase transition between quantum critical states in the form of the fermionic Lifshitz transition. The bipartite entanglement negativity between adjacen...     »
Journal title:
Physical Review B 2024-03
Year:
2024
Journal volume:
109
Journal issue:
11
Fulltext / DOI:
doi:10.1103/physrevb.109.115132
Publisher:
American Physical Society (APS)
E-ISSN:
2469-99502469-9969
Date of publication:
18.03.2024
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