Article ID Journal Published Year Pages File Type
1863260 Physics Letters A 2011 8 Pages PDF
Abstract

Decoherence of a qubit system interacting with a bosonic reservoir is considered when there is at most one excitation in the whole system and there is an initial correlation with the reservoir. An exact time-evolution of the system is obtained and the effect of the initial correlation on the time-evolution is examined in detail.

► Exact reduced dynamics with an initial correlation is obtained for a qubit system. ► Both of individual reservoirs and common reservoir are considered. ► The effect of an initial correlation on the decay of coherence and entanglement are examined.

Related Topics
Physical Sciences and Engineering Physics and Astronomy Physics and Astronomy (General)
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