Please use this identifier to cite or link to this item: https://doi.org/10.1103/PhysRevA.84.062113
Title: Stochastic resonance of quantum discord
Authors: Lee, C.K. 
Kwek, L.C. 
Cao, J.
Issue Date: 19-Dec-2011
Citation: Lee, C.K., Kwek, L.C., Cao, J. (2011-12-19). Stochastic resonance of quantum discord. Physical Review A - Atomic, Molecular, and Optical Physics 84 (6) : -. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevA.84.062113
Abstract: We study the stochastic resonance of quantum discord ("discord resonance") in coupled quantum systems and make a comparison with the stochastic resonance of entanglement ("entanglement resonance"). It is found that the discord resonance is much more robust against dephasing noise and thermal effects than the entanglement resonance. We also show that, unlike the entanglement resonance, the level of dissipation at which the discord resonance occurs is not sensitive to dephasing noise. These results suggest that it is easier to detect the discord resonance in actual experiments, where the dephasing noise and temperature are difficult to control. © 2011 American Physical Society.
Source Title: Physical Review A - Atomic, Molecular, and Optical Physics
URI: http://scholarbank.nus.edu.sg/handle/10635/112522
ISSN: 10502947
DOI: 10.1103/PhysRevA.84.062113
Appears in Collections:Staff Publications

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