Role of instabilities in the survival of quantum correlations

Autor(es)

Roque, T. Figueiredo ^[1] ; Roversi, J. A. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Estadual Campinas, Inst Fis Gleb Wataghin, BR-13083859 Campinas, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Physical Review A; v. 88, n. 3 SEP 23 2013.
• Citações Web of Science: 7

Resumo

This article surveys quantum correlations dynamics, in the Markovian and non-Markovian regimes, in a system of two harmonic oscillators connected by a time-dependent coupling and in contact with a common heat bath. The results show the survival of the quantum correlations, including entanglement, even at very high temperatures, as well as a remarkable relation between entanglement and the instability of the system. The results also show that the indirect interaction of the oscillators via a bath significantly enhances the quantum correlations and that quantum correlations are much more sensitive to the parameters of the oscillators than the temperature of the bath. (AU)

• Processo FAPESP: 11/04521-0 - Correlações clássicas e quânticas num sistema de dois osciladores harmônicos com acoplamento dependente do tempo e em contato com um mesmo reservatório térmico
• Beneficiário: Thales Figueiredo Roque
• Modalidade de apoio: Bolsas no Brasil - Mestrado