Local indistinguishability and edge modes revealed by the sub-system fidelity

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...

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Bibliographic Details
Main Authors: Jin-Guo Liu, Zhao-Long Gu, Jian-Xin Li, Qiang-Hua Wang
Format: Article
Language:English
Published: IOP Publishing 2017-01-01
Series:New Journal of Physics
Subjects:
subsystem fidelity
local indistinguishability
zero mode
symmetry protected topology
64.60.ae
71.10.Pm
Online Access:https://doi.org/10.1088/1367-2630/aa6a4b

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