The classical-quantum boundary for correlations:<? format?> Discord and related measures
One of the best signatures of nonclassicality in a quantum system is the existence of
correlations that have no classical counterpart. Different methods for quantifying the …
correlations that have no classical counterpart. Different methods for quantifying the …
Quantum discord and its allies: a review of recent progress
We review concepts and methods associated with quantum discord and related topics. We
also describe their possible connections with other aspects of quantum information and …
also describe their possible connections with other aspects of quantum information and …
Genuine quantum correlations in quantum many-body systems: a review of recent progress
Quantum information theory has considerably helped in the understanding of quantum many-
body systems. The role of quantum correlations and in particular, bipartite entanglement …
body systems. The role of quantum correlations and in particular, bipartite entanglement …
Geometric quantum discord through the Schatten 1-norm
It has recently been pointed out that the geometric quantum discord, as defined by the
Hilbert-Schmidt norm (2-norm), is not a good measure of quantum correlations, since it may …
Hilbert-Schmidt norm (2-norm), is not a good measure of quantum correlations, since it may …
Comparative investigation of the freezing phenomena for quantum correlations under nondissipative decoherence
We show that the phenomenon of frozen discord, exhibited by specific classes of two-qubit
states under local nondissipative decoherent evolutions, is a common feature of all known …
states under local nondissipative decoherent evolutions, is a common feature of all known …
Revealing nonclassicality of inaccessible objects
Some physical objects are hardly accessible to direct experimentation. It is then desirable to
infer their properties based solely on the interactions they have with systems over which we …
infer their properties based solely on the interactions they have with systems over which we …
One-norm geometric quantum discord under decoherence
JD Montealegre, FM Paula, A Saguia… - Physical Review A—Atomic …, 2013 - APS
Geometric quantum discord is a well-defined measure of quantum correlation if Schatten
one-norm (trace norm) is adopted as a distance measure. Here, we analytically investigate …
one-norm (trace norm) is adopted as a distance measure. Here, we analytically investigate …
Experimental assessment of physical realism in a quantum-controlled device
PR Dieguez, JR Guimarães, JPS Peterson… - Communications …, 2022 - nature.com
Bohr's complementarity principle has been challenged by quantum delayed-choice
experiments wherein quantum systems are claimed to behave neither as wave nor as a …
experiments wherein quantum systems are claimed to behave neither as wave nor as a …
Remedying the local ancilla problem with geometric discord
L Chang, S Luo - Physical Review A—Atomic, Molecular, and Optical …, 2013 - APS
The geometric discord, as introduced by Dakić, Vedral, and Brukner [Phys. Rev. Lett. 105,
190502 (2010) PRLTAO 0031-9007 10.1103/PhysRevLett. 105.190502], is a significant …
190502 (2010) PRLTAO 0031-9007 10.1103/PhysRevLett. 105.190502], is a significant …
Universal freezing of quantum correlations within the geometric approach
M Cianciaruso, TR Bromley, W Roga, R Lo Franco… - Scientific reports, 2015 - nature.com
Quantum correlations in a composite system can be measured by resorting to a geometric
approach, according to which the distance from the state of the system to a suitable set of …
approach, according to which the distance from the state of the system to a suitable set of …