Quantum transport efficiency and Fourier's law

Details Quantum transport efficiency and Fourier's law Quantum transport efficiency and Fourier's law

2011-12-13

arxiv.org/abs/1112.2839v1

Physics

Quantum Physics

5 pages, 4 figures

Scientific paper

We analyze the steady-state energy transfer in a chain of coupled two-level systems connecting two thermal reservoirs. Through an analytic treatment we find that the energy current is independent of the system size, hence violating Fourier's law of heat conduction. The classical diffusive behavior in Fourier's law of heat conduction can be recovered by introducing decoherence to the quantum systems constituting the chain. Implications of these results on energy transfer in biological light harvesting systems, and the role of quantum coherences and entanglement are discussed.

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