Reconfiguration of quantum states in $${\mathscr{P}}{\mathscr{T}}$$ P T -symmetric quasi-one-dimensional lattices

Reconfiguration of quantum states in $${\mathscr{P}}{\mathscr{T}}$$ P T -symmetric quasi-one-dimensional lattices

Abstract We demonstrate mesoscopic transport through quantum states in quasi-1D lattices maintaining the combination of parity and time-reversal symmetries by controlling energy gain and loss. We investigate the phase diagram of the non-Hermitian system where transitions take place between unbroken...

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Autores principales: Jung-Wan Ryu, Nojoon Myoung, Hee Chul Park
Formato: article
Lenguaje:EN
Publicado: Nature Portfolio 2017
Materias:
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Science
Q
Acceso en línea:https://doaj.org/article/8928fc45890a47819e407d4f9fcc695b
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spelling oai:doaj.org-article:8928fc45890a47819e407d4f9fcc695b2021-12-02T11:40:33ZReconfiguration of quantum states in $${\mathscr{P}}{\mathscr{T}}$$ P T -symmetric quasi-one-dimensional lattices10.1038/s41598-017-09410-y2045-2322https://doaj.org/article/8928fc45890a47819e407d4f9fcc695b2017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-09410-yhttps://doaj.org/toc/2045-2322Abstract We demonstrate mesoscopic transport through quantum states in quasi-1D lattices maintaining the combination of parity and time-reversal symmetries by controlling energy gain and loss. We investigate the phase diagram of the non-Hermitian system where transitions take place between unbroken and broken $${\mathscr{P}}{\mathscr{T}}$$ P T -symmetric phases via exceptional points. Quantum transport in the lattice is measured only in the unbroken phases in the energy band–but not in the broken phases. The broken phase allows for spontaneous symmetry-broken states where the cross-stitch lattice is separated into two identical single lattices corresponding to conditionally degenerate eigenstates. These degeneracies show a lift-up in the complex energy plane, caused by the non-Hermiticity with $${\mathscr{P}}{\mathscr{T}}$$ P T -symmetry.Jung-Wan RyuNojoon MyoungHee Chul ParkNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-7 (2017)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Jung-Wan Ryu
Nojoon Myoung
Hee Chul Park
Reconfiguration of quantum states in $${\mathscr{P}}{\mathscr{T}}$$ P T -symmetric quasi-one-dimensional lattices
description Abstract We demonstrate mesoscopic transport through quantum states in quasi-1D lattices maintaining the combination of parity and time-reversal symmetries by controlling energy gain and loss. We investigate the phase diagram of the non-Hermitian system where transitions take place between unbroken and broken $${\mathscr{P}}{\mathscr{T}}$$ P T -symmetric phases via exceptional points. Quantum transport in the lattice is measured only in the unbroken phases in the energy band–but not in the broken phases. The broken phase allows for spontaneous symmetry-broken states where the cross-stitch lattice is separated into two identical single lattices corresponding to conditionally degenerate eigenstates. These degeneracies show a lift-up in the complex energy plane, caused by the non-Hermiticity with $${\mathscr{P}}{\mathscr{T}}$$ P T -symmetry.
format article
author Jung-Wan Ryu
Nojoon Myoung
Hee Chul Park
author_facet Jung-Wan Ryu
Nojoon Myoung
Hee Chul Park
author_sort Jung-Wan Ryu
title Reconfiguration of quantum states in $${\mathscr{P}}{\mathscr{T}}$$ P T -symmetric quasi-one-dimensional lattices
title_short Reconfiguration of quantum states in $${\mathscr{P}}{\mathscr{T}}$$ P T -symmetric quasi-one-dimensional lattices
title_full Reconfiguration of quantum states in $${\mathscr{P}}{\mathscr{T}}$$ P T -symmetric quasi-one-dimensional lattices
title_fullStr Reconfiguration of quantum states in $${\mathscr{P}}{\mathscr{T}}$$ P T -symmetric quasi-one-dimensional lattices
title_full_unstemmed Reconfiguration of quantum states in $${\mathscr{P}}{\mathscr{T}}$$ P T -symmetric quasi-one-dimensional lattices
title_sort reconfiguration of quantum states in $${\mathscr{p}}{\mathscr{t}}$$ p t -symmetric quasi-one-dimensional lattices
publisher Nature Portfolio
publishDate 2017
url https://doaj.org/article/8928fc45890a47819e407d4f9fcc695b
work_keys_str_mv AT jungwanryu reconfigurationofquantumstatesinmathscrpmathscrtptsymmetricquasionedimensionallattices
AT nojoonmyoung reconfigurationofquantumstatesinmathscrpmathscrtptsymmetricquasionedimensionallattices
AT heechulpark reconfigurationofquantumstatesinmathscrpmathscrtptsymmetricquasionedimensionallattices
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