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Single-Particle Self-Energy in Many-Body Systems at Finite Temperature

✍ Scribed by N. Giovanardi; P. Donati; P.F. Bortignon; R.A. Broglia

Publisher
Elsevier Science
Year
2000
Tongue
English
Weight
253 KB
Volume
283
Category
Article
ISSN
0003-4916

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✦ Synopsis

The properties of the self-energy of single-particle states in different many-body systems are studied as a function of the excitation energy | and of the temperature T of the system. Two cases are considered: the coupling to uncorrelated and to correlated particle-hole excitations.

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Thermopower of Kondo effect in single qu
Thermopower of Kondo effect in single quantum dot systems with orbital at finite temperatures
✍ R. Sakano; T. Kita; N. Kawakami πŸ“‚ Article πŸ“… 2007 πŸ› Elsevier Science 🌐 English βš– 167 KB

We investigate the thermopower due to the orbital Kondo effect in a single quantum dot system by means of the noncrossing approximation. It is elucidated how the asymmetry of tunneling resonance due to the orbital Kondo effect affects the thermopower under gate-voltage and magnetic-field control.