Nonequilibrium thermal entanglement

Abstract

Results on heat current, entropy production rate and entanglement are reported for a quantum system coupled to two different temperature heat reservoirs. By applying a temperature gradient, different quantum states can be found with exactly the same amount of entanglement but different purity degrees and heat currents. Furthermore, a nonequilibrium enhancement-suppression transition behavior of the entanglement is identified.

5 pages and 5 figures(eps). Minor changes. Accepted version to be published in Phys. Rev. A

References in corpus (6)

• Knight Field Enabled Nuclear Spin Polarization in Single Quantum Dots
• Singlet-triplet decoherence due to nuclear spins in a double quantum dot
• Enhancement of electron spin coherence by optical preparation of nuclear spins
• Existence of temperature on the nanoscale
• Entanglement in the XX spin chain with an energy current
• Global entanglement in XXZ chains

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