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pro vyhledávání: '"Budini, Adrián A."'
Autor:
Budini, Adrian A.
We characterize a class of superclassical non-Markovian open quantum system dynamics that are defined by their lack of measurement invasiveness when the corresponding observable commutates with the pre-measurement state. This diagonal non-invasivenes
Externí odkaz:
http://arxiv.org/abs/2411.13471
Autor:
Budini, Adrián A.
Publikováno v:
Open Systems & Information Dynamics Vol. 31, No. 03, 2450013 (2024)
In this paper we demonstrate that any Markovian master equation defining a completely positive evolution for a quantum-classical hybrid state can always be written in terms of four basic coupling mechanisms. Each of them is characterized by a differe
Externí odkaz:
http://arxiv.org/abs/2409.09861
Publikováno v:
Phys. Rev. A 110, 022228 (2024)
The distinguishability between two quantum states can be defined in terms of their trace distance. The operational meaning of this definition involves a maximization over measurement projectors. Here we introduce an alternative definition of distingu
Externí odkaz:
http://arxiv.org/abs/2409.00198
Autor:
Budini, Adrián A.
Publikováno v:
Phys. Rev. A 108, 042203 (2023)
Open quantum systems are inherently coupled to their environments, which in turn also obey quantum dynamical rules. By restricting to dissipative dynamics, here we propose a measure that quantifies how far the environment action on a system departs f
Externí odkaz:
http://arxiv.org/abs/2305.16136
Autor:
Budini, Adrián A.
An operational (measurement based) scheme that connects measurement invasiveness and the presence of non-classical memory effects in open quantum systems is defined. Its underlying theoretical basis relies on a non-invasive measurability of (memoryle
Externí odkaz:
http://arxiv.org/abs/2301.02500
Autor:
Budini, Adrián A.
Publikováno v:
Phys. Rev. A 107, 012205 (2023)
The developing of (non-Markovian) memory effects strongly depends on the underlying system-environment dynamics. Here we study this problem in multipartite arrangements where all subsystems are coupled to each other by non-diagonal Markovian (Lindbla
Externí odkaz:
http://arxiv.org/abs/2209.00400
Autor:
Budini, Adrián A.
Publikováno v:
Entropy 24, 649 (2022)
Quantum memory effects can be qualitatively understood as a consequence of an environment-to-system backflow of information. Here, we analyze and compare how this concept is interpreted and implemented in different approaches to quantum non-Markovian
Externí odkaz:
http://arxiv.org/abs/2205.03333
Autor:
Budini, Adrián A.
Publikováno v:
Phys. Rev. A 104, 062216 (2021)
Quantum memory effects can be induced even when the degrees of freedom associated to the environment are not affected at all during the system evolution. In this paper, based on a bipartite representation of the system-environment dynamics, we found
Externí odkaz:
http://arxiv.org/abs/2109.09571
Autor:
Budini, Adrián A., Garrahan, Juan P.
Publikováno v:
Phys. Rev. A 104, 032206 (2021)
We study a class of multipartite open quantum dynamics for systems of arbitrary number of qubits. The non-Markovian quantum master equation can involve arbitrary single or multipartite and time-dependent dissipative coupling mechanisms, expressed in
Externí odkaz:
http://arxiv.org/abs/2107.01692
Autor:
Budini, Adrián A.
Publikováno v:
Phys. Rev. A 103, 012221 (2021)
Quantum memory effects can be related to a bidirectional exchange of information between an open system and its environment, which in turn modifies the state and dynamical behavior of the last one. Nevertheless, non-Markovianity can also be induced b
Externí odkaz:
http://arxiv.org/abs/2101.10308