Experimental investigation of classical and quantum correlations under decoherence

JS Xu, XY Xu, CF Li, CJ Zhang, XB Zou… - Nature …, 2010 - nature.com
It is well known that many operations in quantum information processing depend largely on
a special kind of quantum correlation, that is, entanglement. However, there are also …

Classical and quantum correlations under decoherence

J Maziero, LC Celeri, RM Serra, V Vedral - Physical Review A, 2009 - APS
Recently some authors have pointed out that there exist nonclassical correlations which are
more general, and possibly more fundamental, than entanglement. For these general …

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 …

Experimental recovery of quantum correlations in absence of system-environment back-action

JS Xu, K Sun, CF Li, XY Xu, GC Guo… - Nature …, 2013 - nature.com
Revivals of quantum correlations in composite open quantum systems are a useful
dynamical feature against detrimental effects of the environment. Their occurrence is …

Quantum coherence of multiqubit states in correlated noisy channels

ML Hu, H Fan - arXiv preprint arXiv:1812.04385, 2018 - arxiv.org
The long-time maintenance of quantum coherence is crucial for its practical applications. We
explore decoherence process of a multiqubit system passing through a correlated channel …

Frozen quantum coherence

TR Bromley, M Cianciaruso, G Adesso - Physical review letters, 2015 - APS
We analyze under which dynamical conditions the coherence of an open quantum system is
totally unaffected by noise. For a single qubit, specific measures of coherence are found to …

System-reservoir dynamics of quantum and classical correlations

J Maziero, T Werlang, FF Fanchini, LC Céleri… - Physical Review A, 2010 - APS
We examine the system-reservoir dynamics of classical and quantum correlations in the
decoherence phenomenon within a two-qubit composite system interacting with two …

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 …

Evolution equation for quantum coherence

ML Hu, H Fan - Scientific Reports, 2016 - nature.com
The estimation of the decoherence process of an open quantum system is of both theoretical
significance and experimental appealing. Practically, the decoherence can be easily …

Sudden transition between classical and quantum decoherence

L Mazzola, J Piilo, S Maniscalco - Physical review letters, 2010 - APS
We study the dynamics of quantum and classical correlations in the presence of
nondissipative decoherence. We discover a class of initial states for which the quantum …