Majorana charges, winding numbers and Chern numbers in quantum Ising models

Abstract Mapping a many-body state on a loop in parameter space is a simple way to characterize a quantum state. The connections of such a geometrical representation to the concepts of Chern number and Majorana zero mode are investigated based on a generalized quantum spin system with short and long...

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Bibliographic Details
Main Authors: G. Zhang, C. Li, Z. Song
Format: Article
Language:English
Published: Nature Publishing Group 2017-08-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-017-08323-0