Sufficient and Necessary Condition for Zero Quantum Entropy Rates under any Coupling to the Environment
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Sufficient and Necessary Condition for Zero Quantum Entropy Rates under any Coupling to the Environment
| Title: | Sufficient and Necessary Condition for Zero Quantum Entropy Rates under any Coupling to the Environment |
| Author: |
Rodríguez-Rosario, César A.; Kimura, Gen; Imai, Hideki; Aspuru-Guzik, Alán
Note: Order does not necessarily reflect citation order of authors. |
| Citation: | Rodríguez-Rosario, César A., Gen Kimura, Hideki Imai, and Alán Aspuru-Guzik. 2011. Sufficient and necessary condition for zero quantum entropy rates under any coupling to the environment. Physical Review Letters 106(5): 050403. |
| Full Text & Related Files: |
Sufficient_and_necessary_condition.pdf (132.0Kb; PDF) 
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| Abstract: | We find the necessary and sufficient conditions for the entropy rate of the system to be zero under any system-environment Hamiltonian interaction. We call the class of system-environment states that satisfy this condition lazy states. They are a generalization of classically correlated states defined by quantum discord, but based on projective measurements of any rank. The concept of lazy states permits the construction of a protocol for detecting global quantum correlations using only local dynamical information. We show how quantum correlations to the environment provide bounds to the entropy rate, and how to estimate dissipation rates for general non-Markovian open quantum systems. |
| Published Version: | doi:10.1103/PhysRevLett.106.050403 |
| Other Sources: | http://arxiv.org/abs/1004.5405 |
| Terms of Use: | This article is made available under the terms and conditions applicable to Open Access Policy Articles, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#OAP |
| Citable link to this page: | http://nrs.harvard.edu/urn-3:HUL.InstRepos:8347334 |
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