Results 11 to 20 of about 1,822,262 (208)

Quantum correlation without classical correlations. [PDF]

open access: yesPhysical Review Letters, 2008
We show that genuine multiparty quantum correlations can exist on its own, without a supporting background of genuine multiparty classical correlations, even in macroscopic systems.
Vedral, V.   +10 more
core   +5 more sources

Quantum correlations for anonymous metrology [PDF]

open access: yesQuantum, 2019
We introduce the task of anonymous metrology, in which a physical parameter of an object may be determined without revealing the object's location. Alice and Bob share a correlated quantum state, with which one of them probes the object.
A. J. Paige, Benjamin Yadin, M. S. Kim
doaj   +3 more sources

Bounding quantum correlations with indefinite causal order

open access: yesNew Journal of Physics, 2015
Causal inequalities are bounds on correlations obtained when operations take place in a causal sequence, i.e. in which the background time or definite causal structure pre-exists such that every operation is either in the future, in the past or space ...
Časlav Brukner
doaj   +2 more sources

Quantum Correlations on Quantum Spaces [PDF]

open access: yesInternational Mathematics Research Notices, 2022
Abstract For given quantum (non-commutative) spaces ${\mathbb {P}}$ and ${\mathbb {O}}$, we study the quantum space of maps ${\mathbb {M}}_{{\mathbb {P}},{\mathbb {O}}}$ from ${\mathbb {P}}$ to ${\mathbb {O}}$. In case of finite quantum spaces, these objects turn out to be behind a large class of maps which generalize the classical ...
Sołtan, Piotr   +2 more
openaire   +3 more sources

CORRELATIONS IN QUANTUM PHYSICS [PDF]

open access: yesInternational Journal of Modern Physics B, 2012
We provide a historical perspective of how the notion of correlations has evolved within quantum physics. We begin by reviewing Shannon's information theory and its first application in quantum physics, due to Everett, in explaining the information conveyed during a quantum measurement.
Dorner, R., Vedral, V.
openaire   +4 more sources

Quantum correlation games [PDF]

open access: yesJournal of Physics A: Mathematical and General, 2004
Revised version, 15 pages, 8 figures.
Iqbal, Azhar, Weigert, S.
openaire   +5 more sources

Quantum Discord: A Measure of the Quantumness of Correlations [PDF]

open access: yesPhysical Review Letters, 2001
Two classically identical expressions for the mutual information generally differ when the systems involved are quantum. This difference defines the quantum discord. It can be used as a measure of the quantumness of correlations. Separability of the density matrix describing a pair of systems does not guarantee vanishing of the discord, thus showing ...
Ollivier, Harold, Zurek, Wojciech H.
openaire   +2 more sources

Directional correlations in quantum walks with two particles [PDF]

open access: yes, 2011
Quantum walks on a line with a single particle possess a classical analogue. Involving more walkers opens up the possibility of studying collective quantum effects, such as many-particle correlations.
Štefaňák, M.   +4 more
core   +4 more sources

Vacuum-induced correlations in superconducting microwave cavity under multiple pump tones [PDF]

open access: yes, 2021
| openaire: EC/H2020/670743/EU//QuDeT | openaire: EC/H2020/862644/EU//QUARTETQuantum correlations are an essential resource in advanced information processing based on quantum phenomena.
Hakonen, P. J.   +11 more
core   +1 more source

QUANTUMNESS OF CORRELATIONS AND ENTANGLEMENT [PDF]

open access: yesInternational Journal of Quantum Information, 2011
Generalized measurement schemes on one part of bipartite states, which would leave the set of all separable states insensitive are explored here to understand quantumness of correlations in a more general perspective. This is done by employing linear maps associated with generalized projective measurements.
Usha Devi, A.R.   +2 more
openaire   +4 more sources

Home - About - Disclaimer - Privacy