The classical-quantum boundary for correlations:<? format?> Discord and related measures

K Modi, A Brodutch, H Cable, T Paterek, V Vedral - Reviews of Modern Physics, 2012 - APS
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 …

Quantum discord and its allies: a review of recent progress

A Bera, T Das, D Sadhukhan, SS Roy… - Reports on Progress …, 2017 - iopscience.iop.org
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 …

Quantum discord and steering in top quarks at the LHC

Y Afik, JRM de Nova - Physical Review Letters, 2023 - APS
Top quarks have been recently shown to be a promising system to study quantum
information at the highest-energy scale available. The current lines of research mostly …

Experimental reconstruction of work distribution and study of fluctuation relations in a closed quantum system

TB Batalhão, AM Souza, L Mazzola, R Auccaise… - Physical review …, 2014 - APS
We report the experimental reconstruction of the nonequilibrium work probability distribution
in a closed quantum system, and the study of the corresponding quantum fluctuation …

Global quantum discord in multipartite systems

CC Rulli, MS Sarandy - Physical Review A—Atomic, Molecular, and Optical …, 2011 - APS
We propose a global measure for quantum correlations in multipartite systems, which is
obtained by suitably recasting the quantum discord in terms of relative entropy and local von …

Behavior of quantum correlations under local noise

A Streltsov, H Kampermann, D Bruß - Physical review letters, 2011 - APS
We characterize the behavior of quantum correlations under the influence of local noisy
channels. Intuition suggests that such noise should be detrimental for quantumness. When …

Are general quantum correlations monogamous?

A Streltsov, G Adesso, M Piani, D Bruß - Physical review letters, 2012 - APS
Quantum entanglement and quantum nonlocality are known to exhibit monogamy; that is,
they obey strong constraints on how they can be distributed among multipartite systems …

Environment-induced sudden transition in quantum discord dynamics

R Auccaise, LC Céleri, DO Soares-Pinto… - Physical Review Letters, 2011 - APS
Nonclassical correlations play a crucial role in the development of quantum information
science. The recent discovery that nonclassical correlations can be present even in …

Theoretical and experimental aspects of quantum discord and related measures

LC Céleri, J Maziero, RM Serra - International Journal of Quantum …, 2011 - World Scientific
Correlations are a very important tool in the study of multipartite systems, for both classical
and quantum ones. The discussion about the quantum nature of correlations permeates …

Observable measure of bipartite quantum correlations

D Girolami, G Adesso - Physical review letters, 2012 - APS
We introduce a measure Q of bipartite quantum correlations for arbitrary two-qubit states,
expressed as a state-independent function of the density matrix elements. The amount of …