Memory kernel in the quantum theory of electron-phonon systems

A representation is proposed for the memory kernel function of multilevel electron-phonon systems in the form of an infinite continued fraction, quickly-convergent both in short- and long-time asymptotics.

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Bibliographic Details
Published in:Physics letters. A 1990-08, Vol.148 (1-2), p.35-36
Main Authors: Nazarov, N.U., Ponomarev, O.A.
Format: Article
Language:English
Subjects:
Classical and quantum physics: mechanics and fields
Exact sciences and technology
Physics
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Description
Summary:A representation is proposed for the memory kernel function of multilevel electron-phonon systems in the form of an infinite continued fraction, quickly-convergent both in short- and long-time asymptotics.
ISSN:0375-9601
1873-2429
DOI:10.1016/0375-9601(90)90570-E