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Effect of local filtering on freezing phenomena of quantum correlation

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Abstract

General quantum correlation measures such as quantum discord, one-norm geometric quantum discord exhibit freezing, sudden change, and double sudden change behavior in their decay rates under different noisy channels. Therefore, one may attempt to investigate how the freezing behavior and other dynamical features are affected under application of local quantum operations. In this work, we demonstrate the effect of local filtering on the dynamical evolution of quantum correlations. We have found that using local filtering, one may remove freezing depending upon the filtering parameter.

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Acknowledgments

The authors S. Karmakar and A. Sen acknowledge the financial support from University Grants Commission, New Delhi, India.

Conflict of interest

The authors declare that they have no conflict of interest.

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Authors and Affiliations

  1. Department of Applied Mathematics, University of Calcutta, 92, A.P.C. Road, Kolkata, 700009, India

    Sumana Karmakar, Ajoy Sen & Debasis Sarkar

  2. Department of Mathematics, Jogesh Chandra Chaudhuri College, 30, Prince Anwar Shah Road, Kolkata, 700033, India

    Amit Bhar

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  1. Sumana Karmakar
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  4. Debasis Sarkar
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Correspondence to Debasis Sarkar.

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Karmakar, S., Sen, A., Bhar, A. et al. Effect of local filtering on freezing phenomena of quantum correlation. Quantum Inf Process 14, 2517–2533 (2015). https://doi.org/10.1007/s11128-015-1008-y

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