Results 11 to 20 of about 631 (236)

Measuring quantum discord at the LHC

open access: yesJournal of High Energy Physics
There has been an increasing interest in exploring quantities associated with quantum information at colliders. We perform a detailed analysis describing how to measure the quantum discord in the top anti-top quantum state at the Large Hadron Collider ...
Tao Han   +3 more
doaj   +3 more sources

Note on quantum discord

open access: yesResults in Physics
Quantum discord goes beyond entanglement and exists in a wide range of quantum states that may be separable, playing a crucial role in quantum information tasks.
Yiding Wang   +2 more
doaj   +3 more sources

Quantum features of gravcats [PDF]

open access: yesScientific Reports
We explore the quantum features of two gravitational cats (gravcats) modeled by two qubits, focusing on quantum steerability, concurrence, and geometric quantum discord under varying conditions of gravitational interaction strength, temperature, and ...
Elhabib Jaloum   +2 more
doaj   +2 more sources

The freezing Rènyi quantum discord. [PDF]

open access: yesSci Rep, 2019
AbstractAs a universal quantum character of quantum correlation, the freezing phenomenon is researched by geometry and quantum discord methods, respectively. In this paper, the properties of Rènyi discord is studied for two independent Dimer System coupled to two correlated Fermi-spin environments under the non-Markovian condition.
Li XY   +5 more
europepmc   +5 more sources

Quantum discord as a resource for quantum cryptography. [PDF]

open access: yesSci Rep, 2014
Quantum discord is the minimal bipartite resource which is needed for a secure quantum key distribution, being a cryptographic primitive equivalent to non-orthogonality. Its role becomes crucial in device-dependent quantum cryptography, where the presence of preparation and detection noise (inaccessible to all parties) may be so strong to prevent the ...
Pirandola S.
europepmc   +5 more sources

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   +3 more sources

QUANTUM DISCORD AND QUANTUM COMPUTING — AN APPRAISAL [PDF]

open access: yesInternational Journal of Quantum Information, 2011
We discuss models of computing that are beyond classical. The primary motivation is to unearth the cause of non-classical advantages in computation. Completeness results from computational complexity theory lead to the identification of very disparate problems, and offer a kaleidoscopic view into the realm of quantum enhancements in computation ...
Datta, A, Shaji, A
openaire   +3 more sources

General bounds for quantum discord and discord distance [PDF]

open access: yesQuantum Information Processing, 2015
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Feng Liu 0065   +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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