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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| Format: | Article |
| Language: | English |
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Nature Portfolio
2017-08-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-017-09410-y |
| _version_ | 1818842495200526336 |
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| author | Jung-Wan Ryu Nojoon Myoung Hee Chul Park |
| author_facet | Jung-Wan Ryu Nojoon Myoung Hee Chul Park |
| author_sort | Jung-Wan Ryu |
| collection | DOAJ |
| 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. |
| first_indexed | 2024-12-19T04:42:53Z |
| format | Article |
| id | doaj.art-8928fc45890a47819e407d4f9fcc695b |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-12-19T04:42:53Z |
| publishDate | 2017-08-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-8928fc45890a47819e407d4f9fcc695b2022-12-21T20:35:34ZengNature PortfolioScientific Reports2045-23222017-08-01711710.1038/s41598-017-09410-yReconfiguration of quantum states in $${\mathscr{P}}{\mathscr{T}}$$ P T -symmetric quasi-one-dimensional latticesJung-Wan Ryu0Nojoon Myoung1Hee Chul Park2Center for Theoretical Physics of Complex Systems, Institute for Basic Science (IBS)Center for Theoretical Physics of Complex Systems, Institute for Basic Science (IBS)Center for Theoretical Physics of Complex Systems, Institute for Basic Science (IBS)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.https://doi.org/10.1038/s41598-017-09410-y |
| spellingShingle | Jung-Wan Ryu Nojoon Myoung Hee Chul Park Reconfiguration of quantum states in $${\mathscr{P}}{\mathscr{T}}$$ P T -symmetric quasi-one-dimensional lattices Scientific Reports |
| title | 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_short | 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 |
| url | https://doi.org/10.1038/s41598-017-09410-y |
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