2017/11/09 by Chandrashekar Radhakrishnan, Radhakrishnan, Chandrashekar, Po‐Wen Chen +7 · 1 citation
Computer Science · Physics and Astronomy · #FOS: Physical sciences #Nonlinear Dynamics and Pattern Formation #Quantum Information and Cryptography #Quantum Physics (quant-ph) #Spectroscopy and Quantum Chemical Studies
paper · pdf · doi:10.48550/arxiv.1711.03299
openalex publication_date 2017/11/09 · openalex created_date 2022/10/01 · openalex updated_date 2026/07/28
The time evolution of the distribution and shareability of quantum coherence\nof a tripartite system in a non-Markovian environment is examined. The total\ncoherence can be decomposed into various contributions, ranging from local,\nglobal bipartite and global tripartite, which characterize the type of state.\nWe identify coherence revivals for non-Markovian systems for all the\ncontributions of coherence. The local coherence is found to be much more robust\nunder the environmental coupling due to an effective smaller coupling to the\nreservoir. This allows us to devise a characterization of a quantum state in\nterms of a coherence tuple on a multipartite state simply by examining various\ncombinations of reservoir couplings. The effect of the environment on the\nshareability of quantum coherence, as defined using the monogamy of coherence,\nis investigated and found that the sign of the monogamy is a preserved quantity\nunder the decoherence. We conjecture that the monogamy of coherence is a\nconserved property under local incoherent processes.\n