Zobrazeno 1 - 10
of 88
pro vyhledávání: '"William K. Wootters"'
Autor:
William K. Wootters
Publikováno v:
Entropy, Vol 25, Iss 6, p 875 (2023)
For a quantum system with a d-dimensional Hilbert space, suppose a pure state |ψ⟩ is subjected to a complete orthogonal measurement. The measurement effectively maps |ψ⟩ to a point (p1,…,pd) in the appropriate probability simplex. It is a kno
Externí odkaz:
https://doaj.org/article/530cec9679df4136ad7016b72965e6cb
Publikováno v:
Quantum, Vol 6, p 659 (2022)
Spekkens has introduced an $\textit{epistemically restricted classical theory}$ of discrete systems, based on discrete phase space. The theory manifests a number of quantum-like properties but cannot fully imitate quantum theory because it is noncont
Externí odkaz:
https://doaj.org/article/b2674af7a6094471bd46a5d403ad5e03
Publikováno v:
Entropy, Vol 24, Iss 1, p 137 (2022)
We explore a particular way of reformulating quantum theory in classical terms, starting with phase space rather than Hilbert space, and with actual probability distributions rather than quasiprobabilities. The classical picture we start with is epis
Externí odkaz:
https://doaj.org/article/9583aae91d20456aacf1c2b42df95692
Autor:
William K. Wootters
Publikováno v:
Entropy, Vol 15, Iss 8, Pp 3130-3147 (2013)
A quantum measurement can be regarded as a communication channel, in which the parameters of the state are expressed only in the probabilities of the outcomes of the measurement. We begin this paper by considering, in a non-quantum-mechanical setting
Externí odkaz:
https://doaj.org/article/0e0d9359a67046faa639817f97fb2b55
Autor:
William K. Wootters
Publikováno v:
Entropy, Vol 20, Iss 8, p 619 (2018)
The Scrooge distribution is a probability distribution over the set of pure states of a quantum system. Specifically, it is the distribution that, upon measurement, gives up the least information about the identity of the pure state compared with all
Externí odkaz:
https://doaj.org/article/04714474b94042aebfb79d1f6711f7c9
Autor:
William K. Wootters
Publikováno v:
Nature. 600:607-608
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3e1b2a50a4b5e12139d2457bd60bdbfa
https://doi.org/10.1038/d41586-021-03678-x
https://doi.org/10.1038/d41586-021-03678-x
Spekkens has introduced an epistemically restricted classical theory of discrete systems, based on discrete phase space. The theory manifests a number of quantum-like properties but cannot fully imitate quantum theory because it is noncontextual. In
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3d5637d9e22beded71acfc1e6fbbe3bf
The evolution of the discrete Wigner function is formally similar to a probabilistic process, but the transition probabilities, like the discrete Wigner function itself, can be negative. We investigate these transition probabilities, as well as the t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e3781b91f8f2d5da23a649584123048f
In this paper we explore the following question: can the probabilities constituting the quantum Boltzmann distribution, $P^B_n \propto e^{-E_n/kT}$, be derived from a requirement that the quantum configuration-space distribution for a system in therm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::364f37884675cc7af79d9ae1b37e3180
http://arxiv.org/abs/1710.06051
http://arxiv.org/abs/1710.06051