Detecting Non‐Markovianity via Linear Entropy of Choi State
Sign Up to like & getrecommendations! Published in 2019 at "Annalen der Physik"
DOI: 10.1002/andp.201900320
Abstract: Non-Markovian dynamics detection is one of the most popular subjects in the quantum information science. In this paper, a linear-entropy-based non-Markovianity witness scheme is constructed. The positive definiteness of the Choi state will be broken… read more here.
Keywords: choi state; non markovianity; linear entropy; entropy ... See more keywords
Concepts of quantum non-Markovianity: A hierarchy
Sign Up to like & getrecommendations! Published in 2018 at "Physics Reports"
DOI: 10.1016/j.physrep.2018.07.001
Abstract: Markovian approximation is a widely-employed idea in descriptions of the dynamics of open quantum systems (OQSs). Although it is usually claimed to be a concept inspired by classical Markovianity, the term quantum Markovianity is used… read more here.
Keywords: non markovianity; quantum markovianity; quantum non; quantum ... See more keywords
Detecting non-Markovianity via quantified coherence: theory and experiments
Sign Up to like & getrecommendations! Published in 2019 at "npj Quantum Information"
DOI: 10.1038/s41534-020-0283-3
Abstract: The dynamics of open quantum systems and manipulation of quantum resources are both of fundamental interest in quantum physics. Here, we investigate the relation between quantum Markovianity and coherence, providing an effective way for detecting… read more here.
Keywords: mathcal mathcal; non markovianity; coherence; mathcal rec ... See more keywords
Universal non-Markovianity detection in hybrid open quantum systems
Sign Up to like & getrecommendations! Published in 2020 at "Scientific Reports"
DOI: 10.1038/s41598-020-75329-6
Abstract: A universal characterization of non-Markovianity for any open hybrid quantum systems is presented. This formulation is based on the negativity volume of the generalized Wigner function, which serves as an indicator of the quantum correlations… read more here.
Keywords: non markovianity; quantum; quantum systems; universal non ... See more keywords
Dipole–dipole interactions enhance non-Markovianity and protect information against dissipation
Sign Up to like & getrecommendations! Published in 2019 at "Chinese Physics B"
DOI: 10.1088/1674-1056/ab37f2
Abstract: Preserving non-Markovianity and quantum entanglement from decoherence effect are of theoretical and practical significance in the quantum information processing technologies. In this context, we study a system S that is initially correlated with an ancilla… read more here.
Keywords: dipole dipole; non markovianity; dipole interactions; information ... See more keywords
Convex resource theory of non-Markovianity
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Physics A: Mathematical and Theoretical"
DOI: 10.1088/1751-8121/abd191
Abstract: We establish a convex resource theory of non-Markovianity under the constraint of small time intervals within the temporal evolution. We construct the free operations, free states and a generalized bona-fide measure of non-Markovianity. The framework… read more here.
Keywords: non markovianity; convex resource; resource theory; markovianity ... See more keywords
Nearly Markovian maps and entanglement-based bound on corresponding non-Markovianity
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Physics A: Mathematical and Theoretical"
DOI: 10.1088/1751-8121/ac1d8b
Abstract: We identify a set of dynamical maps of open quantum system, and refer to them as ‘ϵ-Markovian’ maps. It is constituted of maps which, in a higher dimensional system–environment Hilbert space, possibly violate Born approximation… read more here.
Keywords: non markovianity; system; map; markovian maps ... See more keywords
Quantum Darwinism and non-Markovianity in a model of quantum harmonic oscillators
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review A"
DOI: 10.1103/physreva.100.052110
Abstract: To explain aspects of the quantum-to-classical transition, quantum Darwinism explores the fact that, due to interactions between a quantum open system and its surrounding environment, information about the system can be spread redundantly to the… read more here.
Keywords: non markovianity; model; quantum darwinism; darwinism ... See more keywords
Estimating the degree of non-Markovianity using machine learning
Sign Up to like & getrecommendations! Published in 2021 at "Physical Review A"
DOI: 10.1103/physreva.103.022425
Abstract: In the last few years, the application of machine learning methods has become increasingly relevant in different fields of physics. One of the most significant subjects in the theory of open quantum systems is the… read more here.
Keywords: degree non; non markovianity; machine; machine learning ... See more keywords
Quantifying non-Markovianity via conditional mutual information
Sign Up to like & getrecommendations! Published in 2021 at "Physical Review A"
DOI: 10.1103/physreva.104.032212
Abstract: In this paper, we study measures of quantum non-Markovianity based on the conditional mutual information. We obtain such measures by considering multiple parts of the total environment such that the conditional mutual informations can be… read more here.
Keywords: quantifying non; non markovianity; conditional mutual; mutual information ... See more keywords
Non-Markovianity, coherence, and system-environment correlations in a long-range collision model
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review A"
DOI: 10.1103/physreva.96.022109
Abstract: We consider the dynamics of a collisional model in which both the system and environment are embodied by spin-$1/2$ particles. In order to include non-Markovian features in our model we introduce interactions among the environmental… read more here.
Keywords: non markovianity; system environment; degree non; system ... See more keywords