Coherent phonon lasing in a thermal quantum nanomachine

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Title: Coherent phonon lasing in a thermal quantum nanomachine
Authors: Karwat, P
Reiter, D
Kuhn, T
Hess, O
Item Type: Journal Article
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 realizing 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.
Issue Date: 29-Nov-2018
Date of Acceptance: 10-Oct-2018
ISSN: 1050-2947
Publisher: American Physical Society
Journal / Book Title: Physical Review A
Volume: 98
Copyright Statement: ©2018 American Physical Society
Sponsor/Funder: Engineering & Physical Science Research Council (E
Engineering and Physical Sciences Research Council
Funder's Grant Number: RG72590
Keywords: Science & Technology
Physical Sciences
Physics, Atomic, Molecular & Chemical
Publication Status: Published
Article Number: 053855
Appears in Collections:Condensed Matter Theory
Faculty of Natural Sciences

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