Journal
CHINESE PHYSICS LETTERS
Volume 33, Issue 7, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0256-307X/33/7/070307
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Funding
- Science and Technology Plan of Hunan Province [2010FJ3148]
- National Natural Science Foundation of China [11374096]
- Doctoral Science Foundation of Hunan Normal University
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Based on the time-convolutionless master-equation approach, the entropic uncertainty in the presence of quantum memory is investigated for a two-atom system in two dissipative cavities. We find that the entropic uncertainty can be controlled by the non-Markovian effect and the atom-cavity coupling. The results show that increasing the atom-cavity coupling can enlarge the oscillating frequencies of the entropic uncertainty and can decrease the minimal value of the entropic uncertainty. Enhancing the non-Markovian effect can reduce the minimal value of the entropic uncertainty. In particular, if the atom-cavity coupling or the non-Markovian effect is very strong, the entropic uncertainty will be very close to zero at certain time points, thus Bob can minimize his uncertainty about Alice's measurement outcomes.
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