Massless fermions in a bag at finite density and temperature

Journal Article · Sat Feb 01 04:00:00 EST 1997 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.55.2477· OSTI ID:467500

De Francia, M; Falomir, H ^[1]; Loewe, M ^[2]

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1. Departamento de Fisica, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, C.C. 67, 1900 La Plata (Argentina)
2. Facultad de Fisica, Pontificia Universidad Catolica de Chile, Casilla 306, Santiago 22 (Chile)

We introduce the chemical potential in a system of massless fermions in a bag by imposing boundary conditions in the Euclidean time direction. We express the fermionic mean number in terms of a functional trace involving the Green{close_quote}s function of the boundary value problem, which we study analytically. Numerical evaluations are made, and an application to a simple hadron model is discussed. {copyright} {ital 1997} {ital The American Physical Society}

• OSTI ID: 467500
• Journal Information: Physical Review, D, Journal Name: Physical Review, D Journal Issue: 4 Vol. 55; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
BAG MODEL
BOUNDARY CONDITIONS
BOUNDARY-VALUE PROBLEMS
DENSITY
FERMIONS
FUNCTIONAL ANALYSIS
FUNCTIONALS
GREEN FUNCTION
MASSLESS PARTICLES
NUMERICAL ANALYSIS