Scrambling and entanglement spreading in long-range spin chains
| Autor: | Rosario Fazio, Bojan Žunkovič, Alessandro Silva, Angelo Russomanno, Silvia Pappalardi, Fernando Iemini |
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| Přispěvatelé: | Pappalardi, S., Russomanno, A., Zunkovic, B., Iemini, F., Silva, A., Fazio, R. |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Electronic
Optical and Magnetic Materials Condensed Matter Physics Physics Quantum Physics Commutator Chaotic Quantum entanglement 01 natural sciences Multipartite entanglement Critical point (mathematics) Settore FIS/03 - Fisica della Materia 010305 fluids & plasmas Scrambling Multipartite Quantum mechanics Computer Science::Multimedia 0103 physical sciences Electronic Optical and Magnetic Materials 010306 general physics Condensed Matter - Statistical Mechanics Computer Science::Cryptography and Security Spin-½ |
| Zdroj: | Physical Review B 98 (2018): 134303. doi:10.1103/PhysRevB.98.134303 info:cnr-pdr/source/autori:Pappalardi S.; Russomanno A.; Zunkovic B.; Iemini F.; Silva A.; Fazio R./titolo:Scrambling and entanglement spreading in long-range spin chains/doi:10.1103%2FPhysRevB.98.134303/rivista:Physical Review B/anno:2018/pagina_da:134303/pagina_a:/intervallo_pagine:134303/volume:98 Physical Review B |
| DOI: | 10.1103/PhysRevB.98.134303 |
| Popis: | We study scrambling in connection to multipartite entanglement dynamics in regular and chaotic long-range spin chains, characterized by a well defined semi-classical limit. For regular dynamics, scrambling and entanglement dynamics are found to be very different: up to the Ehrenfest time they rise side by side departing only afterwards. Entanglement saturates and becomes extensively multipartite, while scrambling continues its growth up to the recurrence time. Remarkably, the exponential behaviour of scrambling emerges not only in the chaotic case, but also in the regular one, when the dynamics occurs at a dynamical critical point. Comment: 11 pages, 8 figures and Supplementary Material |
| Databáze: | OpenAIRE |
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