Selection-rule blockade and rectification in quantum heat transport

Details Selection-rule blockade and rectification in quantum heat transport Selection-rule blockade and rectification in quantum heat transport

2009-07-21

arxiv.org/abs/0907.3588v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 3 Figs

Scientific paper

We introduce a new thermal transport phenomenon, a unidirectional selection-rule blockade, and show how it produces unprecedented rectification of bosonic heat flow through molecular or mesoscopic quantum systems. Rectification arises from the quantization of energy levels of the conduction element and selection rules of reservoir coupling operators. The simplest system exhibiting the selection-rule blockade is an appropriately coupled three-level system, providing a candidate for a high-performance heat diode. We present an analytical treatment of the transport problem and discuss how the phenomenon generalizes to multilevel systems.

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