Zobrazeno 1 - 10
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pro vyhledávání: '"Francica, Gianluca"'
Autor:
Francica, Gianluca
Work extractable from quantum system is a resource that can be related to some resource theory. By considering completely passive states and passive states as free states, we formulate resource theories where the maximum work extractable is a monoton
Externí odkaz:
http://arxiv.org/abs/2408.13641
Autor:
Francica, Gianluca
A quantum advantage can be achieved in the unitary charging of quantum batteries if their cells are interacting. Here, we try to clarify with some analytical calculations whether and how this quantum advantage is achieved for sparse Sachdev-Ye-Kitaev
Externí odkaz:
http://arxiv.org/abs/2405.03306
Autor:
Francica, Gianluca, Dell'Anna, Luca
Publikováno v:
Phys. Rev. A 109, 052221 (2024)
Fluctuations can challenge the possibility of improving work extraction from quantum correlations. This uncertainty in the work extraction process can be addressed resorting to the expected utility hypothesis which can provide an optimal method for w
Externí odkaz:
http://arxiv.org/abs/2402.15912
Autor:
Francica, Gianluca, Dell'Anna, Luca
Publikováno v:
Phys. Rev. E 109, 064138 (2024)
Fluctuation theorems are fundamental results in nonequilibrium thermodynamics beyond the linear response regime. Among these, the paradigmatic Tasaki-Crooks fluctuation theorem relates the statistics of the works done in a forward out-of-equilibrium
Externí odkaz:
http://arxiv.org/abs/2312.16227
Autor:
Francica, Gianluca, Dell'Anna, Luca
Publikováno v:
Phys. Rev. E 109, 044119 (2024)
Work extraction in quantum finite systems is an important issue in quantum thermodynamics. The optimal work extracted is called ergotropy, and it is achieved by maximizing the average work extracted over all the unitary cycles. However, an agent that
Externí odkaz:
http://arxiv.org/abs/2311.14489
Autor:
Francica, Gianluca, Dell'Anna, Luca
Publikováno v:
Phys. Rev. E 109, 014112 (2024)
The expected utility hypothesis is a popular concept in economics that is useful for making decisions when the payoff is uncertain. In this paper, we investigate the implications of a fluctuation theorem in the theory of expected utility. In particul
Externí odkaz:
http://arxiv.org/abs/2307.12358
Autor:
Francica, Gianluca
In this short note we discuss the time-reversal of a quasiprobability distribution of work.
Externí odkaz:
http://arxiv.org/abs/2306.13353
Publikováno v:
Phys. Rev. B 108, 165106 (2023)
We study the current driven by an applied voltage as a function of time through the Sachdev-Ye-Kitaev model when coupled to two normal or superconducting reservoirs. For normal leads, in the strong coupling limit and for small bias, the current throu
Externí odkaz:
http://arxiv.org/abs/2306.12875
Autor:
Francica, Gianluca, Dell'Anna, Luca
Publikováno v:
Phys. Rev. E 108, 014106 (2023)
A complete understanding of the statistics of the work done by quenching a parameter of a quantum many-body system is still lacking in the presence of an initial quantum coherence in the energy basis. In this case, the work can be represented by a cl
Externí odkaz:
http://arxiv.org/abs/2302.11255
Autor:
Francica, Gianluca, Dell'Anna, Luca
Publikováno v:
Phys. Rev. B 108, 045127 (2023)
We study the role of the interaction range on the Hilbert space fragmentation and many-body scar states considering a spin-1/2 many-body Hamiltonian describing a generalized Fredkin spin chain. We show that both scar states and weak fragmentation of
Externí odkaz:
http://arxiv.org/abs/2302.11680