Results 1 to 10 of about 461 (89)

The tripartite quantum-memory-assisted entropic uncertainty relation and upper bound on shareability of quantum discord [PDF]

open access: yesScientific Reports, 2022
Quantum discord and quantum uncertainty are two important features of the quantum world. In this work, the relation between entropic uncertainty relation and the shareability of quantum discord is studied.
Hazhir Dolatkhah   +2 more
doaj   +2 more sources

Quantum Discord, Thermal Discord, and Entropy Generation in the Minimum Error Discrimination Strategy [PDF]

open access: yesEntropy, 2019
We study the classical and quantum correlations in the minimum error discrimination (ME) of two non-orthogonal pure quantum states. In particular, we consider quantum discord, thermal discord and entropy generation.
Omar Jiménez   +3 more
doaj   +2 more sources

Entanglement and quantum discord in the cavity QED models [PDF]

open access: yesHeliyon
We investigate the quantum correlation between light and matter in bipartite quantum systems, drawing on the Jaynes–Cummings model and the Tavis–Cummings model, which are well-established in cavity quantum electrodynamics.
Hui-hui Miao, Wanshun Li
doaj   +2 more sources

Analysis of Quantum Correlations Obtained Using Local Optimal Universal Asymmetric Cloners [PDF]

open access: yesEntropy, 2022
We apply the local optimal universal asymmetric cloning machine on an initially pure entangled state of two qubits. As output, we obtain two final states which present quantum correlations.
Cătălina Cîrneci, Iulia Ghiu
doaj   +2 more sources

Quantum correlation in a nano-electro-optomechanical system enhanced by an optical parametric amplifier and Coulomb-type interaction [PDF]

open access: yesScientific Reports, 2023
In this paper, we investigated the quantum correlation of nano-electro-optomechanical system enhanced by an optical parametric amplifier (OPA) and Coulomb-type interaction. In particular, we consider a hybrid system consisting of a cavity and two charged
Habtamu Dagnaw Mekonnen   +3 more
doaj   +2 more sources

Quantum feedback-enhanced discord in T-shaped plasmonic waveguides with embedded cavity [PDF]

open access: yesScientific Reports
This theoretical study presents a hybrid quantum system that combines the geometry of a T-shaped plasmonic waveguide with an embedded common cavity and applies quantum feedback control to enhance and preserve quantum discord between two quantum dots (QDs)
Hossein Sadeghi   +2 more
doaj   +2 more sources

A new entropic quantum correlation measure for adversarial systems [PDF]

open access: yesScientific Reports, 2023
Quantum correlation often refers to correlations exhibited by two or more local subsystems under a suitable measurement. These correlations are beyond the framework of classical statistics and the associated classical probability distribution.
Biveen Shajilal   +3 more
doaj   +2 more sources

The power of one clean qubit in supervised machine learning [PDF]

open access: yesScientific Reports, 2023
This paper explores the potential benefits of quantum coherence and quantum discord in the non-universal quantum computing model called deterministic quantum computing with one qubit (DQC1) in supervised machine learning.
Mahsa Karimi   +3 more
doaj   +2 more sources

Quantum correlation of microwave two-mode squeezed state generated by nonlinearity of InP HEMT [PDF]

open access: yesScientific Reports, 2023
This study significantly concentrates on cryogenic InP HEMT high-frequency circuit analysis using quantum theory to find how the transistor nonlinearity can affect the quantum correlation of the modes generated.
A. Salmanogli
doaj   +2 more sources

Quantum correlations beyond entanglement in a classical-channel model of gravity [PDF]

open access: yesScientific Reports, 2022
A direct quantization of the Newtonian interaction between two masses is known to establish entanglement, which if detected would witness the quantum nature of the gravitational field.
Federico Roccati   +6 more
doaj   +2 more sources

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