THE EFFECT OF THERMAL FLUCTUATION ON SPECTRAL-FUNCTION FOR THE TOMONAGA-LUTTINGER MODEL

Authors
NAKAMURA N SUZUMURA Y
Citation
N. Nakamura et Y. Suzumura, THE EFFECT OF THERMAL FLUCTUATION ON SPECTRAL-FUNCTION FOR THE TOMONAGA-LUTTINGER MODEL, Progress of theoretical physics, 98(1), 1997, pp. 29-38
Citations number
21
Categorie Soggetti
Physics
Journal title
Progress of theoretical physics → ACNP
ISSN journal
0033068X
Volume
98
Issue
1
Year of publication
1997
Pages
29 - 38
Database
ISI
SICI code
0033-068X(1997)98:1<29:TEOTFO>2.0.ZU;2-4
Abstract
We examine the spectral function of the single electron Green function at finite temperature for the Tomonaga-Luttinger model which consists of a mutual interaction with only forward scattering. The spectral we ight, which is calculated as a function of the frequency with fixed wa ve number, shows that several peaks originating in the excitation spec tra of charge and spin fluctuations merge into a single peak by the in crease of temperature.