NUMERICAL CALCULATION OF THE COMPLEX BERRY PHASE IN NON-HERMITIAN SYSTEMS

NUMERICAL CALCULATION OF THE COMPLEX BERRY PHASE IN NON-HERMITIAN SYSTEMS

We numerically investigate topological phases of periodic lattice systems in tight-binding description under the influence of dissipation. The effects of dissipation are effectively described by <em>PT</em>-symmetric potentials. In this framework we develop a general numerical gauge smoo...

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Bibliographic Details
Main Authors:	Marcel Wagner, Felix Dangel, Holger Cartarius, Jörg Main, Günter Wunner
Format:	Article
Language:	English
Published:	CTU Central Library 2017-12-01
Series:	Acta Polytechnica
Subjects:	complex Berry phase PT symmetry gauge smoothing
Online Access:	https://ojs.cvut.cz/ojs/index.php/ap/article/view/4182

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