Dynamical phase diagram of a quantum Ising chain with long-range interactions

Piccitto, Giulia (author), Žunkovič, Bojan (author), Silva, Alessandro (author)

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.

• Language: English
• Keywords: quantum mechanics, statistical mechanics
• Typology: 1.01 - Original Scientific Article
• Organization: FMF - Faculty of Mathematics and Physics
• Publication status: Published
• Publication version: Author Accepted Manuscript
• Year: 2019
• Number of pages: Str. 180402-1-180402-5
• Numbering: Vol. 100, iss. 18
• PID: 20.500.12556/RUL-113074
• UDC: 536.93
• ISSN on article: 2469-9950
• DOI: 10.1103/PhysRevB.100.180402
• COBISS.SI-ID: 3389796
• Publication date in RUL: 02.12.2019

Record is a part of a journal

• Title: Physical review
• Publisher: American Physical Society
• ISSN: 2469-9950
• COBISS.SI-ID: 2997348

Secondary language

• Language: Slovenian
• Keywords: kvantna mehanika, statistična mehanika

Projects

• Funder: EC - European Commission
• Funding programme: H2020
• Project number: 694544
• Name: Open many-body non-equilibrium systems
• Acronym: OMNES