Population inversion of driven two-level systems in a structureless bath

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We derive a master equation for a driven double-dot damped by an unstructured phonon bath, and calculate the spectral density. We find that bath mediated photon absorption is important at relatively strong driving, and may even dominate the dynamics, inducing population inversion of the double dot system. This phenomenon is consistent with recent experimental observations.
4 Pages, Added Reference [30] to Dykman, 1979, available at http://www.pa.msu.edu/people/dykman/pub/Sov.J.LowTemp.Phys_5.pdf

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Mesoscale and Nanoscale Physics, Quantum Physics

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http://salesiana.dossiersoluciones.com/handle/123456789/101668

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0507638
 http://arxiv.org/abs/cond-mat/0507638
 Phys. Rev. Lett. 95, 106801 (2005)
 doi:10.1103/PhysRevLett.95.106801

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