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Early-stage disentanglement out of thermal equilibrium

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Abstract

In this paper, we examine how finite time disentanglement can be manipulated for the quantum system out of thermal equilibrium. To this aim, we employ the Markovian master equation approach to find the rate equations and Wootter’s concurrence to analyze out of thermal equilibrium entanglement dynamics for Dicke bases. The effect of super- and sub-radiant rates on entanglement sudden death is examined for different classes of X-states. It is found that the shorter dark period is achieved at a higher transition rate of a super-radiant state. This approach allows us to analyze the further applications of quantum information technologies.

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Authors and Affiliations

  1. School of Natural Sciences, National University of Sciences and Technology, H-12, Islamabad, Pakistan

    Ansha Tayyab & Seerat Javed

  2. Institute for Quantum Science and Engineering, Texas A &M University, College Station, TX, 77843, USA

    Muzzamal I. Shaukat

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  1. Ansha Tayyab
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  2. Seerat Javed
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Ansha Tayyab and Seerat Javed wrote the main manuscript. Ansha Tayyab prepared figures. Muzzamal Iqbal Shaukat supervised the research. All authors reviewed the manuscript.

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Correspondence to Ansha Tayyab.

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Tayyab, A., Javed, S. & Shaukat, M.I. Early-stage disentanglement out of thermal equilibrium. Quantum Inf Process 23, 249 (2024). https://doi.org/10.1007/s11128-024-04447-1

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