Asymmetrical post quench transport in an embedded parity time symmetric
Su-Schrieffer-Heeger system
- URL: http://arxiv.org/abs/2312.03997v1
- Date: Thu, 7 Dec 2023 02:28:23 GMT
- Title: Asymmetrical post quench transport in an embedded parity time symmetric
Su-Schrieffer-Heeger system
- Authors: Anirban Ghosh, Andy Martin
- Abstract summary: We study the effect of PT-symmetric non-hermiticity on the transport of edge state probability density arising as a result of a quench.
A hybrid system involving a PT-symmetric SSH region sandwiched between two plain SSH systems is designed to study the dynamics.
- Score: 1.1285967383574425
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: We study the effect of PT-symmetric non-hermiticity on the transport of edge
state probability density arising as a result of a quench. A hybrid system
involving a PT-symmetric SSH region sandwiched between two plain SSH systems is
designed to study the dynamics. Geometrical arguments and numerical
calculations were made to ascertain the nature of edge states. We then compute
the quench dynamics numerically and demonstrate that the post-quench
probability density light cones exhibit contrasting shapes as a result of
asymmetrical reflections from the non-Hermitian part of the system depending on
the direction of propagation of the transporting wave and, hence, on the
initial localization of the edge state.
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