Zobrazeno 1 - 10
of 39
pro vyhledávání: '"Scandi, Matteo"'
Statistical quantifiers are generically required to contract under physical evolutions, following the intuition that information should be lost under noisy transformations. This principle is very relevant in statistics, and it even allows to derive u
Externí odkaz:
http://arxiv.org/abs/2310.16107
The importance of the quantum Fisher information metric is testified by the number of applications that this has in very different fields, ranging from hypothesis testing to metrology, passing through thermodynamics. Still, from the rich range of pos
Externí odkaz:
http://arxiv.org/abs/2304.14984
Autor:
Scandi, Matteo, Barker, David, Lehmann, Sebastian, Dick, Kimberly A., Maisi, Ville F., Perarnau-Llobet, Martí
In this work we explore the use of thermodynamic length to improve the performance of experimental protocols. In particular, we implement Landauer erasure on a driven electron level in a semiconductor quantum dot, and compare the standard protocol in
Externí odkaz:
http://arxiv.org/abs/2209.01852
Publikováno v:
SciPost Phys. 15, 014 (2023)
A non-isolated physical system typically loses information to its environment, and when such loss is irreversible the evolution is said to be Markovian. Non-Markovian effects are studied by monitoring how information quantifiers, such as the distance
Externí odkaz:
http://arxiv.org/abs/2204.04072
Autor:
Surace, Jacopo, Scandi, Matteo
Publikováno v:
Quantum 7, 990 (2023)
In the context of irreversible dynamics, associating to a physical process its intuitive reverse can result to be a quite ambiguous task. It is a standard choice to define the reverse process using Bayes' theorem, but, in general, this choice is not
Externí odkaz:
http://arxiv.org/abs/2201.09899
Autor:
Barker, David, Scandi, Matteo, Lehmann, Sebastian, Thelander, Claes, Dick, Kimberly A., Perarnau-Llobet, Martí, Maisi, Ville F.
We study experimentally work fluctuations in a Szilard engine that extracts work from information encoded as the occupancy of an electron level in a semiconductor quantum dot. We show that as the average work extracted per bit of information increase
Externí odkaz:
http://arxiv.org/abs/2109.03090
Autor:
Scandi, Matteo, Surace, Jacopo
A central question in resource theory is whether one can construct a set of monotones that completely characterise the allowed transitions dictated by a set of free operations. A similar question is whether two distinct sets of free operations genera
Externí odkaz:
http://arxiv.org/abs/2105.09341
Publikováno v:
Entropy 22(10), 1076 (2020)
Differential geometry offers a powerful framework for optimising and characterising finite-time thermodynamic processes, both classical and quantum. Here, we start by a pedagogical introduction to the notion of thermodynamic length. We review and con
Externí odkaz:
http://arxiv.org/abs/2008.13593
Publikováno v:
Phys. Rev. X 10, 031015 (2020)
Isothermal transformations are minimally dissipative but slow processes, as the system needs to remain close to thermal equilibrium along the protocol. Here, we show that smoothly modifying the system-bath interaction can significantly speed up such
Externí odkaz:
http://arxiv.org/abs/1911.12437
Publikováno v:
Phys. Rev. Research 2, 023377 (2020)
We study the statistics of work, dissipation, and entropy production of a quantum quasi-isothermal process, where the system remains close to the thermal equilibrium along the transformation. We derive a general analytic expression for the work distr
Externí odkaz:
http://arxiv.org/abs/1911.04306