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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…
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Keywords:
choi state;
non markovianity;
linear entropy;
entropy ... See more keywords
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Published in 2020 at "Quantum Information Processing"
DOI: 10.1007/s11128-020-02754-x
Abstract: We propose a reliable analytical method to evaluate the non-classical correlations based on linear entropy for an arbitrary qudit–qubit quantum state. The linear entropy is used to overcome the difficulty of the maximization of the…
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Keywords:
quantum;
linear entropy;
entropy;
quantum discord ... See more keywords
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Published in 2020 at "Linear Algebra and its Applications"
DOI: 10.1016/j.laa.2019.09.008
Abstract: Abstract We derive an inequality for the linear entropy, that gives sharp bounds for all finite dimensional systems. The derivation is based on generalised Bloch decompositions and provides a strict improvement for the possible distribution…
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Keywords:
dimensionally sharp;
sharp inequalities;
linear entropy;
inequalities linear ... See more keywords
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Published in 2020 at "Journal of Modern Optics"
DOI: 10.1080/09500340.2020.1772393
Abstract: It is shown that, in the interaction of a field and a qubit, there exists a relation between the linear entropy and the von Neumann entropy. The Cayley–Hamilton theorem is used to obtain such relation.…
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Keywords:
relation entropy;
linear entropy;
ion;
relation ... See more keywords
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Published in 2022 at "Entropy"
DOI: 10.3390/e24030324
Abstract: We consider a family of states describing three-qubit systems. We derived formulas showing the relations between linear entropy and measures of coherence such as degree of coherence, first- and second-order correlation functions. We show that…
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Keywords:
linear entropy;
family;
qubit states;
coherence ... See more keywords