Quantum regression beyond the Born-Markov approximation for generalized spin-boson models
Lonigro D, Chruściński D (2022)
Publication Type: Journal article
Publication year: 2022
Journal
Book Volume: 105
Article Number: 052435
Journal Issue: 5
DOI: 10.1103/PhysRevA.105.052435
Abstract
The quantum regression formula for an open quantum system consists in an infinite hierarchy of conditions for its multitime correlation functions, thus requiring full access to the total "system+environment"evolution, and providing a stronger requirement than completely positive (CP) divisibility. Here, we analyze CP divisibility and check the validity of quantum regression beyond the Born-Markov approximation (e.g., the weak-coupling limit) for a class of generalized spin-boson models giving rise to a multilevel amplitude-damping evolution; in all cases, it is possible to engineer the system-bath coupling in such a way that quantum regression is exactly satisfied.
Authors with CRIS profile
Involved external institutions
Nicolaus Copernicus University (NCU) / Uniwersytet Mikołaja Kopernika w Toruniu (UMK)
Poland (PL)
University of Bari Aldo Moro / Università degli Studi di Bari Aldo Moro
Italy (IT)
Poland (PL)
University of Bari Aldo Moro / Università degli Studi di Bari Aldo Moro
Italy (IT)
How to cite
APA:
Lonigro, D., & Chruściński, D. (2022). Quantum regression beyond the Born-Markov approximation for generalized spin-boson models. Physical Review A, 105(5). https://doi.org/10.1103/PhysRevA.105.052435
MLA:
Lonigro, Davide, and Dariusz Chruściński. "Quantum regression beyond the Born-Markov approximation for generalized spin-boson models." Physical Review A 105.5 (2022).
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