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Title

Collision Models Can Efficiently Simulate Any Multipartite Markovian Quantum Dynamics

AuthorsCattaneo, Marco; De Chiara, Gabriele; Maniscalco, Sabrina; Zambrini, Roberta CSIC ORCID ; Giorgi, Gian Luca CSIC ORCID
Issue Date2-Apr-2021
PublisherAmerican Physical Society
CitationPhysical Review Letters 126(13): 130403 (2021)
AbstractWe introduce the multipartite collision model, defined in terms of elementary interactions between subsystems and ancillas, and show that it can simulate the Markovian dynamics of any multipartite open quantum system. We develop a method to estimate an analytical error bound for any repeated interactions model, and we use it to prove that the error of our scheme displays an optimal scaling. Finally, we provide a simple decomposition of the multipartite collision model into elementary quantum gates, and show that it is efficiently simulable on a quantum computer according to the dissipative quantum Church-Turing theorem, i.e., it requires a polynomial number of resources.
Publisher version (URL)https://doi.org/10.1103/PhysRevLett.126.130403
URIhttp://hdl.handle.net/10261/240440
DOI10.1103/PhysRevLett.126.130403
ISSN0031-9007
E-ISSN1079-7114
Appears in Collections:(IFISC) Artículos




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