Dynamical Phase Transitions in Quantum Reservoir Computing
Closed quantum systems exhibit different dynamical regimes, like many-body localization or thermalization, which determine the mechanisms of spread and processing of information. Here we address the impact of these dynamical phases in quantum reservoir computing, an unconventional computing paradigm...
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| Veröffentlicht in: | Physical review letters 2021-09, Vol.127 (10), p.100502-100502, Article 100502 |
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| container_end_page | 100502 |
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| container_issue | 10 |
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| container_title | Physical review letters |
| container_volume | 127 |
| creator | Martínez-Peña, Rodrigo Giorgi, Gian Luca Nokkala, Johannes Soriano, Miguel C. Zambrini, Roberta |
| description | Closed quantum systems exhibit different dynamical regimes, like many-body localization or thermalization, which determine the mechanisms of spread and processing of information. Here we address the impact of these dynamical phases in quantum reservoir computing, an unconventional computing paradigm recently extended into the quantum regime that exploits dynamical systems to solve nonlinear and temporal tasks. We establish that the thermal phase is naturally adapted to the requirements of quantum reservoir computing and report an increased performance at the thermalization transition for the studied tasks. Uncovering the underlying physical mechanisms behind optimal information processing capabilities of spin networks is essential for future experimental implementations and provides a new perspective on dynamical phases. |
| doi_str_mv | 10.1103/PhysRevLett.127.100502 |
| format | Article |
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| ispartof | Physical review letters, 2021-09, Vol.127 (10), p.100502-100502, Article 100502 |
| issn | 0031-9007 1079-7114 |
| language | eng |
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| source | American Physical Society Journals; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals |
| subjects | Computation Data processing Many body interactions Phase transitions Thermalization (energy absorption) |
| title | Dynamical Phase Transitions in Quantum Reservoir Computing |
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