Results 61 to 70 of about 1,306,871 (197)
, 2019 Quantum discord measures quantum correlation by comparing the quantum mutual information with the maximal amount of mutual information accessible to a quantum measurement.
Liu, Zi-Wen, Lloyd, Seth, Takagi, Ryuji
core +1 more source
Super-quantum discord in ferromagnetic and antiferromagnetic materials [PDF]
Quantum Information Processing, 2019 Super-quantum discord is an extension of the quantum discord concept where weak measurements are made instead of projective measurements. We study the temperature behavior of the super-quantum discord for two real magnetic materials.
A. Fedorova, T. Byrnes, A. Pyrkov
semanticscholar +1 more source
Quantum coherence bounds the distributed discords
npj Quantum Information, 2022 Establishing quantum correlations between two remote parties by sending an information carrier is an essential step of many protocols in quantum information processing.
Zhi-Xiang Jin +3 more
doaj +1 more source
Correlations in quantum states and the local creation of quantum discord
, 2012 Quantum discord is usually referred to as a measure for quantum correlations. In the search of the fundamental resource to gain a quantum advantage in quantum information applications, quantum discord is considered a promising candidate. In this paper we
Breuer, Heinz-Peter +3 more
core +1 more source
Geometric quantum discord with Bures distance
New Journal of Physics, 2013 We define a new measure of quantum correlations in bipartite quantum systems given by the Bures distance of the system state to the set of classical states with respect to one subsystem, that is, to the states with zero quantum discord.
D Spehner, M Orszag
doaj +1 more source
Maximizing quantum discord from interference in multi-port fiber beamsplitters
npj Quantum Information, 2021 Fourth-order interference is an information processing primitive for photonic quantum technologies, as it forms the basis of photonic controlled-logic gates, entangling measurements, and can be used to produce quantum correlations.
J. Cariñe +3 more
doaj +1 more source
Noise-Assisted Discord-Like Correlations in Light-Harvesting Photosynthetic Complexes
Quantum Reports, 2021 Transport phenomena in photosynthetic systems have attracted a great deal of attention due to their potential role in devising novel photovoltaic materials.
Pablo Reséndiz-Vázquez +2 more
doaj +1 more source
Quantum Information Processing, 2018 Originally introduced as the difference between two possible forms of quantum mutual information, quantum discord has posteriorly been shown to admit a formulation according to which it measures a distance between the state under scrutiny and the closest
P. R. Dieguez, R. Angelo
semanticscholar +1 more source
Quantum correlations in the collective spin systems
, 2012 Quantum and classical pairwise correlations in two typical collective spin systems (i.e., the Dicke model and the Lipkin-Meshkov-Glick model) are discussed.
Chen Wang +6 more
core +1 more source
Effect of Classical and Quantum Superposition of Atomic States on Quantum Correlations
Advances in Mathematical Physics, 2023 In this paper, we report the effect of classical and quantum superposition of atomic states on quantum correlations. Coupled photon pairs generated in a ladder quantum beat laser using coherent-induced classical field and atomic state coherent ...
Chimdessa Gashu +2 more
doaj +1 more source