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Exactly solvable three-level quantum dissipative systems via bosonization of fermion gas-impurity models

Citation

Jacobsen, SH and Jarvis, PD, Exactly solvable three-level quantum dissipative systems via bosonization of fermion gas-impurity models, Journal of Physics A : Mathematical and Theoretical, 43, (25) pp. 1-11. ISSN 1751-8113 (2010) [Refereed Article]


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Copyright Statement

Copyright İ 2010 IOP Publishing Ltd

Official URL: http://www.iop.org/

DOI: doi:10.1088/1751-8113/43/25/255305

Abstract

We study the relationship between one-dimensional fermion gas-impurity models and quantum dissipative systems, via the method of constructive bosonization and unitary transformation. Starting from an anisotropic Coqblin–Schrieffer model, a new, exactly solvable, three-level quantum dissipative system is derived as a generalization of the standard spin- spin-boson model. The new system has two environmental oscillator baths with ohmic coupling, and admits arbitrary detuning between the three levels. All tunnelling matrix elements are equal, up to one complex phase which is itself a function of the longitudinal and transverse couplings in the integrable limit. Our work underlines the importance of re-examining the detailed structure of fermion-gas impurity models and spin chains, in the light of connections to models for quantum dissipative systems

Item Details

Item Type:Refereed Article
Research Division:Physical Sciences
Research Group:Condensed Matter Physics
Research Field:Condensed Matter Characterisation Technique Development
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in the Physical Sciences
Author:Jacobsen, SH (Miss Sol Jacobsen)
Author:Jarvis, PD (Dr Peter Jarvis)
ID Code:64887
Year Published:2010
Web of Science® Times Cited:1
Deposited By:Mathematics and Physics
Deposited On:2010-09-13
Last Modified:2011-03-23
Downloads:0

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