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