2024-03-29T02:11:39Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/446372018-09-17T11:08:39Zcom_10261_2855com_10261_4col_10261_2857
Entanglement dynamics of nonidentical oscillators under decohering environments
Galve, Fernando
Giorgi, Gian Luca
Zambrini, Roberta
We study the evolution of entanglement for a pair of coupled nonidentical harmonic oscillators in contact with an environment. For both cases of a common bath and of two separate baths for each of the oscillators, a full master equation is provided without rotating-wave approximation. The entanglement dynamics is analyzed as a function of the diversity between the oscillators frequencies and their positive or negative mutual coupling and also the correlation between the occupation numbers. The singular effect of the resonance condition (identical oscillators) and its relationship with the possibility of preserving asymptotic entanglement are discussed. The importance of the bath s memory properties is investigated by comparing Markovian and non-Markovian evolutions.
2012-01-24T11:18:57Z
2012-01-24T11:18:57Z
2010
artÃculo
Physical Review A 81: 062117 (2010)
1050-2947
http://hdl.handle.net/10261/44637
10.1103/PhysRevA.81.062117
1094-1622
eng
http://dx.doi.org/10.1103/PhysRevA.81.062117
openAccess
American Physical Society