We investigate the effect of short-range correlations on the dynamical phase diagram of quantum many-body systems with long-range interactions. Focusing on Ising spin chains with power-law decaying interactions and accounting for short-range correlations by a cluster mean field theory we show that short-range correlations are responsible for the emergence of a chaotic dynamical region. Analyzing the fine details of the phase diagram, we show that the resulting chaotic dynamics bears close analogies with that of a tossed coin. © 2019 American Physical Society.
Dynamical phase diagram of a quantum Ising chain with long-range interactions / Piccitto, Giulia; Žunkovič, Bojan; Silva, Alessandro. - In: PHYSICAL REVIEW. B. - ISSN 2469-9950. - 100:18(2019), pp. 1-5. [10.1103/PhysRevB.100.180402]
Dynamical phase diagram of a quantum Ising chain with long-range interactions
Piccitto, Giulia
;Žunkovič, Bojan;Silva, Alessandro
2019-01-01
Abstract
We investigate the effect of short-range correlations on the dynamical phase diagram of quantum many-body systems with long-range interactions. Focusing on Ising spin chains with power-law decaying interactions and accounting for short-range correlations by a cluster mean field theory we show that short-range correlations are responsible for the emergence of a chaotic dynamical region. Analyzing the fine details of the phase diagram, we show that the resulting chaotic dynamics bears close analogies with that of a tossed coin. © 2019 American Physical Society.| File | Dimensione | Formato | |
|---|---|---|---|
|
PhysRevB.100.180402.pdf
non disponibili
Tipologia:
Versione Editoriale (PDF)
Licenza:
Tutti i diritti riservati (All rights reserved)
Dimensione
2.02 MB
Formato
Adobe PDF
|
2.02 MB | Adobe PDF | Visualizza/Apri Richiedi una copia |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
