%0 Journal Article
%T Steady entanglement out of thermal equilibrium
%+ Laboratoire Charles Coulomb (L2C)
%A Bellomo, Bruno
%A Antezza, Mauro
%< avec comité de lecture
%Z L2C:13-230
%@ 0295-5075
%J EPL - Europhysics Letters
%I European Physical Society/EDP Sciences/Società Italiana di Fisica/IOP Publishing
%V 104
%P 10006
%8 2013-11-06
%D 2013
%R 10.1209/0295-5075/104/10006
%Z Physics [physics]/Condensed Matter [cond-mat]/Quantum Gases [cond-mat.quant-gas]
%Z Physics [physics]/Quantum Physics [quant-ph]Journal articles
%X We study two two-level atomic quantum systems (qubits) placed close to a body held at a temperature different from that of the surrounding walls. While at thermal equilibrium the two-qubit dynamics is characterized by non-entangled steady thermal states, we show that the absence of thermal equilibrium may bring to the generation of entangled steady states. Remarkably, this entanglement emerges from the two-qubit dissipative dynamic itself, without any further external action on the two qubits, suggesting a new protocol to create and protect entanglement which is intrinsically robust to environmental effects.
%G English
%2 https://hal.science/hal-00880526/document
%2 https://hal.science/hal-00880526/file/20-EPL_104_10006_2013post-print.pdf
%L hal-00880526
%U https://hal.science/hal-00880526
%~ CNRS
%~ L2C
%~ MIPS
%~ UNIV-MONTPELLIER
%~ UM-2015-2021