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arXiv · 1806.01057

Coherent phonon lasing in a thermal quantum nanomachine

Paweł Karwat·Doris E. Reiter·Tilmann Kuhn·Ortwin Hess
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Abstract

The notion of nanomachines has recently emerged to engage and use collective action of ensembles of nanoscale components or systems. Here we present a heat-gradient driven nanomachine concept which through appropriate coupling between quantum nanosystems is capable of realising and maintaining an inversion. Based on a Lindblad form of the Quantum Master Equation with a semiclassical coupling to the lattice displacement phonon field we show that this positive inversion can be harnessed to generate coherent optomechanical oscillations and phonon lasing.

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Paweł Karwat, Doris E. Reiter, Tilmann Kuhn, Ortwin Hess. 2018-08-27. Coherent phonon lasing in a thermal quantum nanomachine. https://doi.org/10.1103/physreva.98.053855

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