Zobrazeno 1 - 10
of 69
pro vyhledávání: '"Šafránek, Dominik"'
Autor:
Balyo, Tomáš, Suda, Martin, Chrpa, Lukáš, Šafránek, Dominik, Gocht, Stephan, Dvořák, Filip, Barták, Roman, Youngblood, G. Michael
Previous STRIPS domain model acquisition approaches that learn from state traces start with the names and parameters of the actions to be learned. Therefore their only task is to deduce the preconditions and effects of the given actions. In this work
Externí odkaz:
http://arxiv.org/abs/2402.10726
We investigate four partial orderings on the space of quantum measurements (i.e on POVMs or positive operator valued measures), describing four notions of coarse/fine-ness of measurement. These are the partial orderings induced by: (1) classical post
Externí odkaz:
http://arxiv.org/abs/2310.14086
Publikováno v:
Phys. Rev. A 109, 022607 (2024)
We introduce a quantum charging distance as the minimal time that it takes to reach one state (charged state) from another state (depleted state) via a unitary evolution, assuming limits on the resources invested into the driving Hamiltonian. For pur
Externí odkaz:
http://arxiv.org/abs/2308.16086
Observational entropy captures both the intrinsic uncertainty of a thermodynamic state and the lack of knowledge due to coarse-graining. We demonstrate two interpretations of observational entropy, one as the statistical deficiency resulting from a m
Externí odkaz:
http://arxiv.org/abs/2308.08763
Autor:
Šafránek, Dominik
Entanglement entropy is one of the most prominent measures in quantum physics. We show that it has an interesting ergotropic interpretation in terms of unitarily extracted work. It determines how much energy one can extract from a source of pure unkn
Externí odkaz:
http://arxiv.org/abs/2306.08987
Autor:
Šafránek, Dominik, Rosa, Dario
Publikováno v:
Phys. Rev. A 108, 022208 (2023)
We present a method to estimate the probabilities of outcomes of a quantum observable, its mean value, and higher moments by measuring any other observable. This method is general and can be applied to any quantum system. In the case of estimating th
Externí odkaz:
http://arxiv.org/abs/2301.10428
Publikováno v:
Phys. Rev. Lett. 130, 210401 (2023)
Energy extraction is a central task in thermodynamics. In quantum physics, ergotropy measures the amount of work extractable under cyclic Hamiltonian control. As its full extraction requires perfect knowledge of the initial state, however, it does no
Externí odkaz:
http://arxiv.org/abs/2209.11076
Publikováno v:
New J. Phys. 25, 053002 (2023)
Observational entropy provides a general notion of quantum entropy that appropriately interpolates between Boltzmann's and Gibbs' entropies, and has recently been argued to provide a useful measure of out-of-equilibrium thermodynamic entropy. Here we
Externí odkaz:
http://arxiv.org/abs/2209.03803
Publikováno v:
Phys. Rev. Lett. 128, 140501 (2022)
Quantum batteries are devices made from quantum states, which store and release energy in a fast and efficient manner, thus offering numerous possibilities in future technological applications. They offer a significant charging speedup when compared
Externí odkaz:
http://arxiv.org/abs/2108.02491
Publikováno v:
Foundations of Physics 51, 101 (2021)
In the past several years, observational entropy has been developed as both a (time-dependent) quantum generalization of Boltzmann entropy, and as a rather general framework to encompass classical and quantum equilibrium and non-equilibrium coarse-gr
Externí odkaz:
http://arxiv.org/abs/2008.04409