Results 81 to 90 of about 613,927 (273)

Experimental investigation of classical and quantum correlations under decoherence [PDF]

open access: yesNat. Commun. 1:7 doi: 10.1038/ncomms1005 (2010), 2009
It is well known that many operations in quantum information processing depend largely on a special kind of quantum correlation, that is, entanglement. However, there are also quantum tasks that display the quantum advantage without entanglement. Distinguishing classical and quantum correlations in quantum systems is therefore of both fundamental and ...
arxiv   +1 more source

Quantum Correlations and Secret Bits [PDF]

open access: yesPhysical Review Letters, 2005
4 pages, published ...
Acin, Antonio, Gisin, Nicolas
openaire   +5 more sources

Correlational quantum theory and correlation constraints [PDF]

open access: yesPhysical Review A, 2021
v2 with updated discussions on Feynman diagrams; 6 pages, 2 figures, plus ...
openaire   +3 more sources

Beyond Order: Perspectives on Leveraging Machine Learning for Disordered Materials

open access: yesAdvanced Engineering Materials, EarlyView.
This article explores how machine learning (ML) revolutionizes the study and design of disordered materials by uncovering hidden patterns, predicting properties, and optimizing multiscale structures. It highlights key advancements, including generative models, graph neural networks, and hybrid ML‐physics methods, addressing challenges like data ...
Hamidreza Yazdani Sarvestani   +4 more
wiley   +1 more source

All Multiparty Quantum States Can Be Made Monogamous [PDF]

open access: yesAnn. Phys. 348, 297 (2014), 2012
Monogamy of quantum correlation measures puts restrictions on the sharability of quantum correlations in multiparty quantum states. Multiparty quantum states can satisfy or violate monogamy relations with respect to given quantum correlations. We show that all multiparty quantum states can be made monogamous with respect to all measures. More precisely,
arxiv   +1 more source

Quantum correlations and distinguishability of quantum states [PDF]

open access: yesJournal of Mathematical Physics, 2014
A survey of various concepts in quantum information is given, with a main emphasis on the distinguishability of quantum states and quantum correlations. Covered topics include generalized and least square measurements, state discrimination, quantum relative entropies, the Bures distance on the set of quantum states, the quantum Fisher information, the ...
openaire   +5 more sources

Universality in quantum parametric correlations [PDF]

open access: yesPhysical Review E, 1999
We investigate the universality of correlation functions of chaotic and disordered quantum systems as an external parameter is varied. A new, general scaling procedure is introduced which makes the theory invariant under reparametrizations. Under certain general conditions we show that this procedure is unique.
Leboeuf, P, Sieber, MMA
openaire   +6 more sources

Hybrid Framework Materials: Next‐Generation Engineering Materials

open access: yesAdvanced Engineering Materials, EarlyView.
Hybrid organic–inorganic materials merge the unique properties of organic and inorganic compounds, enabling applications in optoelectronics, gas storage, and catalysis. This review explores metal‐organic frameworks, hybrid organic–inorganic perovskites, and the emerging field of hybrid glasses, emphasizing their structures, functionalities, and ...
Jay McCarron   +2 more
wiley   +1 more source

Correlations in Two-Qubit Systems under Non-Dissipative Decoherence

open access: yesAxioms, 2020
We built a new set of suitable measures of correlations for bipartite quantum states based upon a recently introduced theoretical framework [Bussandri et al. in Quantum Inf. Proc. 18:57, 2019].
Diego G. Bussandri   +3 more
doaj   +1 more source

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 ...
Harold Ollivier, Wojciech H. Zurek
openaire   +3 more sources

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