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

Stace, T. M., Doherty, A. C. and Barrett, S. D. (2005) Population inversion of a driven two-level system in a structureless bath. Physical Review Letters, 95 10: 10680-1-10680-4. doi:10.1103/PhysRevLett.95.106801

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Author Stace, T. M.
Doherty, A. C.
Barrett, S. D.
Title Population inversion of a driven two-level system in a structureless bath
Journal name Physical Review Letters   Check publisher's open access policy
ISSN 0031-9007
Publication date 2005-09-02
Sub-type Article (original research)
DOI 10.1103/PhysRevLett.95.106801
Open Access Status File (Publisher version)
Volume 95
Issue 10
Start page 10680-1
End page 10680-4
Total pages 4
Place of publication College Pk
Publisher American Physical Soc
Collection year 2005
Language eng
Subject C1
0206 Quantum Physics
Abstract We derive a master equation for a driven double quantum 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.
Keyword Physics, Multidisciplinary
Quantum Dots
Spontaneous Emission
Field
Coherent
Q-Index Code C1

 
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Created: Wed, 15 Aug 2007, 05:56:43 EST