Phase transitions of wave packet dynamics in disordered non-Hermitian systems
Fuente:
arXiv
Salvato in:
| Autori principali: | , , , , |
|---|---|
| Natura: | Preprint |
| Pubblicazione: |
2023
|
| Soggetti: | |
| Accesso online: | |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1866914787591454720 |
|---|---|
| author | Spring, Helene Könye, Viktor Gerritsma, Fabian A. Fulga, Ion Cosma Akhmerov, Anton R. |
| author_facet | Spring, Helene Könye, Viktor Gerritsma, Fabian A. Fulga, Ion Cosma Akhmerov, Anton R. |
| contents | Disorder can localize the eigenstates of one-dimensional non-Hermitian systems, leading to an Anderson transition with a critical exponent of 1. We show that, due to the lack of energy conservation, the dynamics of individual, real-space wave packets follows a different behavior. Both transitions between localization and unidirectional amplification, as well as transitions between distinct propagating phases become possible. The critical exponent of the transition equals $1/2$ in propagating-propagating transitions. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2301_07370 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Phase transitions of wave packet dynamics in disordered non-Hermitian systems Spring, Helene Könye, Viktor Gerritsma, Fabian A. Fulga, Ion Cosma Akhmerov, Anton R. Mesoscale and Nanoscale Physics Disordered Systems and Neural Networks Disorder can localize the eigenstates of one-dimensional non-Hermitian systems, leading to an Anderson transition with a critical exponent of 1. We show that, due to the lack of energy conservation, the dynamics of individual, real-space wave packets follows a different behavior. Both transitions between localization and unidirectional amplification, as well as transitions between distinct propagating phases become possible. The critical exponent of the transition equals $1/2$ in propagating-propagating transitions. |
| title | Phase transitions of wave packet dynamics in disordered non-Hermitian systems |
| topic | Mesoscale and Nanoscale Physics Disordered Systems and Neural Networks |
| url | https://arxiv.org/abs/2301.07370 |