Friedel oscillations in phase space: Wigner function of trapped interacting fermions

Autor:	Wolfgang P. Schleich, W. Wonneberger, F Gleisberg
Rok vydání:	2001
Předmět:	Condensed Matter::Quantum Gases Bosonization Friedel oscillations Coupling constant Physics Fermion Condensed Matter Physics Atomic and Molecular Physics and Optics Quantum mechanics Phase space Quantum electrodynamics Wigner distribution function Hyperfine structure Sign (mathematics)
Zdroj:	Journal of Physics B: Atomic, Molecular and Optical Physics. 34:4645-4651
ISSN:	1361-6455 0953-4075
DOI:	10.1088/0953-4075/34/23/309
Popis:	The Wigner function W(z,k) for a model of interacting one-dimensional fermions confined to a harmonic trap is evaluated at zero temperature. The model considers two hyperfine states of the same fermionic species and treats the dominant interactions between the two using the bosonization method. Interactions substantially modify the shape of the Wigner function. Irrespective of the sign of the coupling constant, the Friedel oscillations inherent in the Wigner function are enhanced in the k-direction and suppressed in the z-direction.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d12531b3d2fa3b8e478ca2298611884b https://doi.org/10.1088/0953-4075/34/23/309 Zobrazit plný text záznamu