Quantum-optical implementation of non-Hermitian potentials for asymmetric scattering

Non-Hermitian, one-dimensional potentials which are also non-local, allow for scattering asymmetries, namely, asymmetric transmission or reflection responses to the incidence of a particle from left or right. The symmetries of the potential imply selection rules for transmission and reflection. In p...

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Bibliographic Details
Published in:arXiv.org 2020-08
Main Authors: Ruschhaupt, Andreas, Kiely, Anthony, Simón, Miguel Ángel, J Gonzalo Muga
Format: Article
Language:English
Subjects:
Asymmetry
Reflection
Scattering
Symmetry
Online Access:Get full text
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Summary:Non-Hermitian, one-dimensional potentials which are also non-local, allow for scattering asymmetries, namely, asymmetric transmission or reflection responses to the incidence of a particle from left or right. The symmetries of the potential imply selection rules for transmission and reflection. In particular, parity-time (PT) symmetry or the symmetry of any local potential do not allow for asymmetric transmission. We put forward a feasible quantum-optical implementation of non-Hermitian, non-local, non-PT potentials to implement different scattering asymmetries, including transmission asymmetries.
ISSN:2331-8422
DOI:10.48550/arxiv.2008.01702