Time Dependent {Hartree-Fock} Formalism and the Excitation of the Dirac Sea in the {Nambu-Jona-Lasinio} Model

Da Providencia, J.; Ruivo, M.C.; De Sousa, C.A.

doi:10.1103/PhysRevD.36.1882

Time Dependent {Hartree-Fock} Formalism and the Excitation of the Dirac Sea in the {Nambu-Jona-Lasinio} Model

1987

15 pages

Published in:

Phys.Rev.D 36 (1987) 1882-1896

DOI:

10.1103/PhysRevD.36.1882

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Abstract: (APS)

The dynamical chiral-symmetry breaking, the light-meson spectrum, and the properties of the pion are investigated in the Nambu–Jona-Lasinio model. The time-dependent Hartree-Fock formalism is used. The pion dispersion relation is derived in a semiclassical approximation. The stationarity of the quark droplet matter is investigated in the Thomas-Fermi approximation.

field theoretical model: Jona-Lasinio-Nambu
symmetry breaking: chiral
dynamical symmetry breaking
field theory: vacuum state
energy
approximation: mean field
approximation: Hartree-Fock
time dependence
fermion: condensation
meson: model

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