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ROBUSTNESS OF DIFFERENT INDICATORS OF QUANTUMNESS IN THE PRESENCE OF DISSIPATION

IFISC (UIB-CSIC), Instituto de Física, Interdisciplinary Sistemas Complejos, UIB Campus, E-07122 Palma de Mallorca, Spain

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FERNANDO GALVE

IFISC (UIB-CSIC), Instituto de Física, Interdisciplinary Sistemas Complejos, UIB Campus, E-07122 Palma de Mallorca, Spain

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ROBERTA ZAMBRINI

IFISC (UIB-CSIC), Instituto de Física, Interdisciplinary Sistemas Complejos, UIB Campus, E-07122 Palma de Mallorca, Spain

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https://doi.org/10.1142/S0219749911008180Cited by:4 (Source: Crossref)

Abstract

The dynamics of a pair of coupled harmonic oscillators in separate or common thermal environments is studied, focusing on different indicators of quantumness, such as entanglement, twin oscillators correlations, and quantum discord. We compare their decay under the effect of dissipation and show, through a phase diagram, that entanglement is more likely to survive asymptotically than twin oscillators correlations.

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