Publication : t93/018

Collective fermionic excitations in systems with a large chemical potential

Blaizot J.-P. (CEA, DSM, SPhT (Service de Physique Théorique), F-91191 Gif-sur-Yvette, FRANCE)
Ollitrault J.-Y. (CEA, DSM, SPhT (Service de Physique Théorique), F-91191 Gif-sur-Yvette, FRANCE)
Abstract:
We study fermionic excitations in a cold ultrarelativistic plasma. We construct explicitly the quantum states associated with the two branches which develop in the excitation spectrum as the chemical potential is raised. The collective nature of the long wavelength excitations is clearly exhibited.
Année de publication : 1993
Revue : Phys. Rev. D 48 1390-1408 (1993)
Preprint : arXiv:hep-th/9303070
Lien : http://publish.aps.org/abstract/PRD/v48/p1390
PACS : 12-20 m, 12-20 Ds, 12-38 Mh
Langue : Anglais
NB : 48, 1390-1408 (1993)

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