Zobrazeno 1 - 10
of 104
pro vyhledávání: '"Sone, Akira"'
Publikováno v:
Phys. Rev. Research 6, 033198 (2024)
Motivated by the great success of classical generative models in machine learning, enthusiastic exploration of their quantum version has recently started. To depart on this journey, it is important to develop a relevant metric to evaluate the quality
Externí odkaz:
http://arxiv.org/abs/2311.12163
What is the major difference between large and small systems? At small length-scales the dynamics is dominated by fluctuations, whereas at large scales fluctuations are irrelevant. Therefore, any thermodynamically consistent description of quantum sy
Externí odkaz:
http://arxiv.org/abs/2308.04951
Publikováno v:
Phys. Rev. A 108, L050203 (2023)
We study the quantum fluctuation theorem in the one-time measurement (OTM) scheme, where the work distribution of the backward process has been lacking and which is considered to be more informative than the two-time measurement (TTM) scheme. We find
Externí odkaz:
http://arxiv.org/abs/2306.09578
Image processing is a fascinating field for exploring quantum algorithms. However, achieving quantum speedups turns out to be a significant challenge. In this work, we focus on image filtering to identify a class of images that can achieve a substant
Externí odkaz:
http://arxiv.org/abs/2306.07251
Publikováno v:
Quantum Sci. Technol. 9 045018 (2024)
Taking accurate measurements of the temperature of quantum systems is a challenging task. The mathematical peculiarities of quantum information make it virtually impossible to measure with infinite precision. In the present paper, we introduce a gene
Externí odkaz:
http://arxiv.org/abs/2304.13595
Publikováno v:
AVS Quantum Sci. 5, 032001 (2023)
We derive a general quantum exchange fluctuation theorem for multipartite systems with arbitrary coupling strengths by taking into account the informational contribution of the back-action of the quantum measurements, which contributes to the increas
Externí odkaz:
http://arxiv.org/abs/2209.12927
Publikováno v:
Phys. Rev. Research 5, 023039 (2023)
The two-time measurement scheme is well studied in the context of quantum fluctuation theorem. However, it becomes infeasible when the random variable determined by a single measurement trajectory is associated with the von-Neumann entropy of the qua
Externí odkaz:
http://arxiv.org/abs/2209.01761
Autor:
Alderete, C. Huerta, Gordon, Max Hunter, Sauvage, Frederic, Sone, Akira, Sornborger, Andrew T., Coles, Patrick J., Cerezo, M.
Publikováno v:
Phys. Rev. Lett. 129, 190501 (2022)
In a standard Quantum Sensing (QS) task one aims at estimating an unknown parameter $\theta$, encoded into an $n$-qubit probe state, via measurements of the system. The success of this task hinges on the ability to correlate changes in the parameter
Externí odkaz:
http://arxiv.org/abs/2206.09919
Publikováno v:
npj Quantum Inf. 8, 87 (2022)
Quantum Approximate Optimization algorithm (QAOA) aims to search for approximate solutions to discrete optimization problems with near-term quantum computers. As there are no algorithmic guarantee possible for QAOA to outperform classical computers,
Externí odkaz:
http://arxiv.org/abs/2109.13346
Autor:
Sone, Akira, Deffner, Sebastian
Publikováno v:
Entropy, 23(9), 1107 (2021)
The quantum ergotropy quantifies the maximal amount of work that can be extracted from a quantum state without changing its entropy. Given that the ergotropy can be expressed as the difference of quantum and classical relative entropies of the quantu
Externí odkaz:
http://arxiv.org/abs/2103.10850