Results 41 to 50 of about 1,306,706 (295)

Experimental Investigation of the Evolution of Gaussian Quantum Discord in an Open System [PDF]

open access: green, 2012
Gaussian quantum discord is a measure of quantum correlations in Gaussian systems. Using Gaussian discord we quantify the quantum correlations of a bipartite entangled state and a separable two-mode mixture of coherent states.
Lars S. Madsen   +3 more
openalex   +7 more sources

Geometric quantum discord and coherence in a dipolar interacting magnetic system [PDF]

open access: yesPhysica Scripta, 2023
The study of low-dimensional metal complexes has revealed fascinating characteristics regarding the ground-state crossover shown by spin-gaped systems. In this context, this work explores the effect of the quantum-level crossing, induced by the magnetic ...
C. Cruz   +3 more
semanticscholar   +1 more source

Quantum Discord and Steering in Top Quarks at the LHC. [PDF]

open access: yesPhysical Review Letters, 2022
Top quarks have been recently shown to be a promising system to study quantum information at the highest-energy scale available. The current lines of research mostly discuss topics such as entanglement, Bell nonlocality or quantum tomography.
Y. Afik, J. R. M. de Nova
semanticscholar   +1 more source

Quantum discord and entropic measures of two relativistic fermions [PDF]

open access: yesJournal of Physics A: Mathematical and Theoretical, 2022
In the present work, we study the interplay between relativistic effects and quantumness in the system of two relativistic fermions. In particular, we explore entropic measures of quantum correlations and quantum discord before and after application of a
P. Kurashvili, L. Chotorlishvili
semanticscholar   +1 more source

Quantum battery based on quantum discord at room temperature [PDF]

open access: yesQuantum Science and Technology, 2021
The study of advanced quantum devices for energy storage has attracted the attention of the scientific community in the past few years. Although several theoretical progresses have been achieved recently, experimental proposals of platforms operating as ...
C. Cruz   +4 more
semanticscholar   +1 more source

Efficient Characterization of Quantum Evolutions via a Recommender System [PDF]

open access: yesQuantum, 2021
We demonstrate characterizing quantum evolutions via matrix factorization algorithm, a particular type of the recommender system (RS). A system undergoing a quantum evolution can be characterized in several ways.
Priya Batra   +2 more
doaj   +1 more source

Gaussian Quantum Discord [PDF]

open access: yesPhysical Review Letters, 2010
4 pages, 2 figures, new version, typos ...
P. Giorda, M. Paris
openaire   +4 more sources

Applying Gaussian quantum discord to quantum key distribution

open access: green, 2013
In this paper, we theoretically prove that the Gaussian quantum discord state of optical field can be used to complete continuous variable (CV) quantum key distribution (QKD). The calculation shows that secret key can be distilled with a Gaussian quantum
Xiaolong Su
openalex   +4 more sources

Quantum discord in quantum computation [PDF]

open access: yesJournal of Physics: Conference Series, 2011
Prepared for publication in the Proceedings of DICE2010. Section 4 contains previously unpublished results on process tomography.
Daniel R. Terno   +3 more
openaire   +3 more sources

Monogamy properties of quantum correlations in neutrino oscillations

open access: yesEuropean Physical Journal C: Particles and Fields, 2023
The monogamy relation of quantum states has limited the shareability properties of quantum resources in multiparty quantum systems. It plays a vital role in information distribution and transformation over many sites in quantum communications.
Guang-Jie Wang   +4 more
doaj   +1 more source

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