Please use this identifier to cite or link to this item: https://doi.org/10.1103/PhysRevLett.108.070501
Title: Almost all quantum states have low entropy rates for any coupling to the environment
Authors: Hutter, A.
Wehner, S. 
Issue Date: 2012
Source: Hutter, A.,Wehner, S. (2012). Almost all quantum states have low entropy rates for any coupling to the environment. Physical Review Letters 108 (7). ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevLett.108.070501
Abstract: The joint state of a system that is in contact with an environment is called lazy, if the entropy rate of the system under any coupling to the environment is zero. Necessary and sufficient conditions have recently been established for a state to be lazy, and it was shown that almost all states of the system and the environment do not have this property. At first glance, this may lead us to believe that low entropy rates themselves form an exception, in the sense that most states are far from being lazy and have high entropy rates. Here, we show that in fact the opposite is true if the environment is sufficiently large. Almost all states of the system and the environment are pretty lazy-their entropy rates are low for any coupling to the environment. © 2012 American Physical Society.
Source Title: Physical Review Letters
URI: http://scholarbank.nus.edu.sg/handle/10635/39606
ISSN: 00319007
DOI: 10.1103/PhysRevLett.108.070501
Appears in Collections:Staff Publications

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