Robust stationary entanglement of two coupled qubits in independent environments

Matteo Scala, Antonino Messina, Scala, Rosanna Migliore, Sánchez-Soto, Messina

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)

Abstract

The dissipative dynamics of two interacting qubits coupled to independent reservoirs at nonzerotemperatures is investigated, paying special attention to the entanglement evolution. The counter-rotatingterms in the qubit-qubit interaction give rise to stationary entanglement, traceable back to the ground statestructure. The robustness of this entanglement against thermal noise is thoroughly analyzed, establishingthat it can be detected at reasonable experimental temperatures. Some effects linked to a possible reservoirasymmetry are brought to light.
Original languageEnglish
Pages (from-to)199-205
Number of pages7
JournalTHE EUROPEAN PHYSICAL JOURNAL. D, ATOMIC, MOLECULAR AND OPTICAL PHYSICS
Volume61
Publication statusPublished - 2011

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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