Loss-induced quantum information jet in an infinite temperature Hubbard chain

Penc, Patrik (author), Moca, Cătălin Paşcu (author), Legeza, Örs (author), Prosen, Tomaž (author), Zaránd, Gergely (author), Werner, Miklós Antal (author)

Information propagation in the one-dimensional infinite temperature Hubbard model with a dissipative particle sink at the end of a semi-infinite chain is studied. In the strongly interacting limit, the two-site mutual information and the operator entanglement entropy exhibit a rich structure with two propagating information fronts and superimposed interference fringes. A classical reversible cellular automaton model quantitatively captures the transport and the slow, classical part of the correlations but fails to describe the rapidly propagating information jet. The fast quantum jet resembles coherent free particle propagation, with the accompanying long-ranged interference fringes that are exponentially damped by short-ranged spin correlations in the many-body background.

• Language: English
• Keywords: quantum physics, quantum information, quantum enatnglement, Hubbard model
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: FMF - Faculty of Mathematics and Physics
• Publication status: Published
• Publication version: Author Accepted Manuscript
• Year: 2024
• Number of pages: Str. 190403-1-190403-6
• Numbering: Vol. 133, iss. 19
• PID: 20.500.12556/RUL-168183
• UDC: 530.145
• ISSN on article: 0031-9007
• DOI: 10.1103/PhysRevLett.133.190403
• COBISS.SI-ID: 231013123
• Publication date in RUL: 01.04.2025

Record is a part of a journal

• Title: Physical review letters
• Shortened title: Phys. rev. lett.
• Publisher: American Physical Society
• ISSN: 0031-9007
• COBISS.SI-ID: 1282575

Licences

• License: CC BY 4.0, Creative Commons Attribution 4.0 International
• Link: http://creativecommons.org/licenses/by/4.0/
• Description: This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

• Language: Slovenian
• Keywords: kvantna fizika, kvantna informacija, kvantna prepletenost, Hubbardov model