In:
Modern Physics Letters B, World Scientific Pub Co Pte Ltd, Vol. 34, No. 36 ( 2020-12-30), p. 2150087-
Abstract:
In this paper, to characterize the effect of topological defects on the entanglement of topological states, we introduce the concept of local entanglement entropy. By using the spinless [Formula: see text] superconductor with quantized vortices, we numerically calculated the local entanglement entropy. In the topological superconducting (weak-pairing) phase, we found that the local entanglement entropy turns to 0.5 for a Majorana zero mode. For the system with two/four Majorana zero modes, by calculating local entanglement entropy, we found the non-locality effect of Majorana zero modes. In the future, we will use local entanglement entropy to characterize the defect effect on other many-body systems with long entanglement, for example, topological order and quantum spin liquid.
Type of Medium:
Online Resource
ISSN:
0217-9849
,
1793-6640
DOI:
10.1142/S0217984921500871
Language:
English
Publisher:
World Scientific Pub Co Pte Ltd
Publication Date:
2020
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