Zobrazeno 1 - 10
of 985
pro vyhledávání: '"De Bièvre, P"'
Autor:
Thio, Jonathan J., Salmon, Wilfred, Barnes, Crispin H. W., De Bièvre, Stephan, Arvidsson-Shukur, David R. M.
We uncover new features of generalized contextuality by connecting it to the Kirkwood-Dirac (KD) quasiprobability distribution. Quantum states can be represented by KD distributions, which take values in the complex unit disc. Only for ``KD-positive'
Externí odkaz:
http://arxiv.org/abs/2412.00199
Given two observables $A$ and $B$, one can associate to every quantum state a Kirkwood-Dirac (KD) quasiprobability distribution. KD distributions are like joint classical probabilities except that they can have negative or nonreal values, which are a
Externí odkaz:
http://arxiv.org/abs/2407.04558
Autor:
Langrenez, Christopher, Salmon, Wilfred, De Bièvre, Stephan, Thio, Jonathan J., Long, Christopher K., Arvidsson-Shukur, David R. M.
A central problem in quantum information is determining quantum-classical boundaries. A useful notion of classicality is provided by the quasiprobability formulation of quantum theory. In this framework, a state is called classical if it is represent
Externí odkaz:
http://arxiv.org/abs/2405.17557
Autor:
Arvidsson-Shukur, David R. M., Braasch Jr., William F., De Bievre, Stephan, Dressel, Justin, Jordan, Andrew N., Langrenez, Christopher, Lostaglio, Matteo, Lundeen, Jeff S., Halpern, Nicole Yunger
The most famous quasi-probability distribution, the Wigner function, has played a pivotal role in the development of a continuous-variable quantum theory that has clear analogues of position and momentum. However, the Wigner function is ill-suited fo
Externí odkaz:
http://arxiv.org/abs/2403.18899
Publikováno v:
Quantum 8, 1360 (2024)
Rigorous derivations of the approach of individual elements of large isolated systems to a state of thermal equilibrium, starting from arbitrary initial states, are exceedingly rare. This is particularly true for quantum mechanical systems. We demons
Externí odkaz:
http://arxiv.org/abs/2312.14290
Publikováno v:
J. Math. Phys. 65, 072201 (2024)
The Kirkwood-Dirac (KD) quasiprobability distribution can describe any quantum state with respect to the eigenbases of two observables $A$ and $B$. KD distributions behave similarly to classical joint probability distributions but can assume negative
Externí odkaz:
http://arxiv.org/abs/2306.00086
Publikováno v:
Political Research Exchange, Vol 6, Iss 1 (2024)
The political science literature has extensively analyzed the political influence of interest groups in recent years. Despite growing scholarly interest into their role in agenda-setting, a significant blind spot remains in understanding their contro
Externí odkaz:
https://doaj.org/article/125384855f224d78b189522754751852
Autor:
Matilde Hens, Steven Declercq, Nicole Berens-Riha, Ula Maniewski, Caroline Theunissen, Steven Van Den Broucke, Felix De Bièvre, Isabel Brosius, Laurens Liesenborghs, Christophe Van Dijck, Christophe Burm, Inne Nauwelaers, Katleen Balliauw, Benjamin J. Visser, Emmanuel Bottieau, Patrick Soentjens
Publikováno v:
Travel Medicine and Infectious Disease, Vol 62, Iss , Pp 102761- (2024)
Background: We aimed to determine the timeliness of rabies post-exposure prophylaxis (PEP) and the proportion of individuals with an adequate antibody response post-PEP among those attending the Belgian national reference center. Methods: Retrospecti
Externí odkaz:
https://doaj.org/article/eab1b66bd509496da8abe96949f66d41
Autor:
Armaroli, Andrea, Dujardin, Guillaume, Kudlinski, Alexandre, Mussot, Arnaud, De Bièvre, Stephan, Conforti, Matteo
We study modulational instability in a dispersion-managed system where the sign of the group-velocity dispersion is changed at uniformly distributed random distances around a reference length. An analytical technique is presented to estimate the inst
Externí odkaz:
http://arxiv.org/abs/2211.16326
Publikováno v:
Phys. Rev. A 108, 023730 (2023)
Assessing whether a quantum state $\hat \rho$ is nonclassical ($\textit{i.e.}$, incompatible with a mixture of coherent states) is a ubiquitous question in quantum optics, yet a nontrivial experimental task because many nonclassicality witnesses are
Externí odkaz:
http://arxiv.org/abs/2211.12992