Zobrazeno 1 - 10
of 77
pro vyhledávání: '"Wiesław Laskowski"'
Autor:
Paweł Cieśliński, Jan Dziewior, Lukas Knips, Waldemar Kłobus, Jasmin Meinecke, Tomasz Paterek, Harald Weinfurter, Wiesław Laskowski
Publikováno v:
npj Quantum Information, Vol 10, Iss 1, Pp 1-10 (2024)
Abstract Detecting entanglement in multipartite quantum states is an inherently probabilistic process, typically with a few measured samples. The level of confidence in entanglement detection quantifies the scheme’s validity via the probability tha
Externí odkaz:
https://doaj.org/article/6a9003ff78fc40b2ba00514713c6828a
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-13 (2021)
Abstract In this work we investigate the problem of simultaneous estimation of phases using generalised three- and four-mode Mach–Zehnder interferometer. In our setup, we assume that the phases are placed in each of the modes in the interferometer,
Externí odkaz:
https://doaj.org/article/112b467672a7477c868a2a79057c351d
Publikováno v:
New Journal of Physics, Vol 25, Iss 9, p 093040 (2023)
Natural interactions among multiple quantum objects are fundamentally composed of two-body terms only. In contradistinction, single global unitaries that generate highly entangled states typically arise from Hamiltonians that couple multiple individu
Externí odkaz:
https://doaj.org/article/4f853188db6b4f36bce6076159ed7763
Publikováno v:
New Journal of Physics, Vol 24, Iss 12, p 123017 (2022)
We propose an optimal and efficient numerical test for witnessing genuine multipartite nonlocality based on a geometric approach. In particular, we consider two non-equivalent models of local hidden variables, namely the Svetlichny and the no-signali
Externí odkaz:
https://doaj.org/article/fae0725a3adf4288a5584d497767e793
Autor:
Artur Barasiński, Antonín Černoch, Wiesław Laskowski, Karel Lemr, Tamás Vértesi, Jan Soubusta
Publikováno v:
Quantum, Vol 5, p 430 (2021)
In this work, we study a recently proposed operational measure of nonlocality by Fonseca and Parisio [Phys. Rev. A 92, 030101(R) (2015)] which describes the probability of violation of local realism under randomly sampled observables, and the strengt
Externí odkaz:
https://doaj.org/article/27e4ae32e9654bba80e241c6e3835384
Autor:
Waldemar Kłobus, Marek Miller, Mahasweta Pandit, Ray Ganardi, Lukas Knips, Jan Dziewior, Jasmin Meinecke, Harald Weinfurter, Wiesław Laskowski, Tomasz Paterek
Publikováno v:
New Journal of Physics, Vol 23, Iss 6, p 063057 (2021)
We propose an information-theoretic quantifier for the advantage gained from cooperation that captures the degree of dependency between subsystems of a global system. The quantifier is distinct from measures of multipartite correlations despite shari
Externí odkaz:
https://doaj.org/article/a27bf345955345099dc9d2aea9c5e2ca
Publikováno v:
Physical Review Applied. 18
Phase measurement constitutes a key task in many fields of science, both in the classical and quantum regime. The higher precision of such measurement offers significant advances, and can also be utilised to achieve finer estimates for quantities suc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b5e1fb041f5f297a16917fbd2f485da0
https://doi.org/10.1103/physrevapplied.18.034011
https://doi.org/10.1103/physrevapplied.18.034011
Autor:
Waldemar Kłobus, Paweł Kurzyński, Marek Kuś, Wiesław Laskowski, Robert Przybycień, Karol Życzkowski
Publikováno v:
Physical review. E. 105(3-1)
We study a damped kicked top dynamics of a large number of qubits ($N \rightarrow \infty$) and focus on an evolution of a reduced single-qubit subsystem. Each subsystem is subjected to the amplitude damping channel controlled by the damping constant
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3a675374082d00d8c9c08241a3334e3a
https://pubmed.ncbi.nlm.nih.gov/35428151
https://pubmed.ncbi.nlm.nih.gov/35428151
Publikováno v:
Physical Review A
We propose a method to witness entanglement between two continuous-variable systems in a Gaussian state. Its key ingredient is a local lossy state transfer from the original spatially separated systems onto two spatially separated qubits. The qubits
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::85cd05b37df25518f832ea6d64b2a413
https://doi.org/10.1103/physreva.103.032412
https://doi.org/10.1103/physreva.103.032412
Autor:
Harald Weinfurter, Tomasz Paterek, Jan Dziewior, Marek Miller, Lukas Knips, Ray Ganardi, Waldemar Kłobus, Jasmin D. A. Meinecke, Mahasweta Pandit, Wiesław Laskowski
Publikováno v:
New Journal of Physics
We propose an information-theoretic quantifier for the advantage gained from cooperation that captures the degree of dependency between subsystems of a global system. The quantifier is distinct from measures of multipartite correlations despite shari
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6454e116710a66769d3f751bb0f2308b
