Results 61 to 70 of about 1,354,711 (291)
Entanglement Irreversibility from Quantum Discord and Quantum Deficit [PDF]
Physical Review Letters, 2011 Typos corrected. Improved figures.
Cornelio, Marcio F. +2 more
openaire +3 more sources
IEEE Photonics Journal, 2018 We investigate the decay properties of the quantumness including quantum entanglement, quantum discord, and quantum coherence for two photonic qubits, which are partially entangled in their orbital angular momenta, through Kolmogorov turbulent atmosphere.
Mei-Song Wei +3 more
doaj +1 more source
Two-orbital quantum discord in fermion systems [PDF]
, 2020 A simple expression to compute the quantum discord between two orbitals in fermion systems is derived using the parity superselection rule. As the correlation between orbitals depends on the basis chosen, we discuss a special orbital basis, the natural ...
J. Faba, V. Mart'in, L. Robledo
semanticscholar +1 more source
Quantum Discord Cannot Be Shared
Physical Review Letters, 2013 5 pages, 3 ...
Streltsov, Alexander, Zurek, Wojciech H.
openaire +4 more sources
Homodyne Estimation of Gaussian Quantum Discord [PDF]
Physical Review Letters, 2012 We address the experimental estimation of Gaussian quantum discord for two-mode squeezed thermal state, and demonstrate a measurement scheme based on a pair of homodyne detectors assisted by Bayesian analysis which provides nearly optimal estimation for small value of discord.
R. Blandino +6 more
openaire +6 more sources
Analytic Expression of Quantum Discords in Werner States under LQCC
Entropy, 2020 In this paper, quantum discords in a special kind of states, i.e., Werner states by local quantum operations and classical communication (LQCC) protocols (WLQCC states), are studied.
Chuanmei Xie +3 more
doaj +1 more source
Simultaneous sudden change in the exact values of geometric quantum discord and measurement induced nonlocality [PDF]
Iranian Journal of Astronomy and Astrophysics, 2018 Recent studies show that two completely distinct fields as quantum information and string theory realization can be related and share some of the same properties.
Samira Nazifkar, Hakimeh Jaghouri
doaj +1 more source
One-way unlocalizable quantum discord [PDF]
Physical Review A, 2012 6 pages, 3 figures.
Xi, Zhengjun, Fan, Heng, Li, Yongming
openaire +2 more sources
Characterizing entanglement using quantum discord over state extensions [PDF]
Physical Review A, 2020 We propose a framework to characterize entanglement with quantum discord, both asymmetric and symmetric, over state extensions. In particular, we show that the minimal Bures distance of discord over state extensions is equivalent to Bures distance of ...
Chunhe Xiong +4 more
semanticscholar +1 more source
Entanglement Distribution and Quantum Discord [PDF]
, 2017 Establishing entanglement between distant parties is one of the most important problems of quantum technology, since long-distance entanglement is an essential part of such fundamental tasks as quantum cryptography or quantum teleportation. In this lecture we review basic properties of entanglement and quantum discord, and discuss recent results on ...
Streltsov, Alexander +2 more
openaire +2 more sources