Delineating incoherent non-Markovian dynamics using quantum coherence |
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Authors: | Titas Chanda Samyadeb Bhattacharya |
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Institution: | Harish-Chandra Research Institute, Chhatnag Road, Jhunsi, Allahabad - 211019, India |
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Abstract: | We introduce a method of characterization of non-Markovianity using coherence of a system interacting with the environment. We show that under the allowed incoherent operations, monotonicity of a valid coherence measure is affected due to non-Markovian features of the system–environment evolution. We also define a measure to quantify non-Markovianity of the underlying dynamics based on the non-monotonic behavior of the coherence measure. We investigate our proposed non-Markovianity marker in the behavior of dephasing and dissipative dynamics for one and two qubit cases. We also show that our proposed measure captures the back-flow of information from the environment to the system and compatible with well known distinguishability criteria of non-Markovianity. |
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Keywords: | Non-Markovianity Coherence Open system |
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