Zobrazeno 1 - 4
of 4
pro vyhledávání: '"Shintaro Minagawa"'
Publikováno v:
npj Quantum Information, Vol 8, Iss 1, Pp 1-11 (2022)
Abstract The inevitable accumulation of errors in near-future quantum devices represents a key obstacle in delivering practical quantum advantages, motivating the development of various quantum error-mitigation methods. Here, we derive fundamental bo
Externí odkaz:
https://doaj.org/article/fbbd2cca96ec48dd80817c8f2d888c4d
Publikováno v:
Quantum, Vol 8, p 1235 (2024)
We construct a resource theory of $sharpness$ for finite-dimensional positive operator-valued measures (POVMs), where the $sharpness-non-increasing$ operations are given by quantum preprocessing channels and convex mixtures with POVMs whose elements
Externí odkaz:
https://doaj.org/article/11fda73dbcc743cea2bb1996aee62716
Publikováno v:
Quantum, Vol 7, p 1035 (2023)
While there is general consensus on the definition of incompatible POVMs, moving up to the level of instruments one finds a much less clear situation, with mathematically different and logically independent definitions of incompatibility. Here we clo
Externí odkaz:
https://doaj.org/article/d633b7dd52534ed9b98f7efd54ccff74
Publikováno v:
Physical Review Research, Vol 4, Iss 3, p 033091 (2022)
Von Neumann obtained the formula for the entropy of a quantum state by assuming the validity of the second law of thermodynamics in a thought experiment involving semipermeable membranes and an ideal gas of quantum-labeled particles. Despite being op
Externí odkaz:
https://doaj.org/article/586524f6f08d45ef8b02c6d3fd879150