Nambu-Jona-Lasinio approach to realization of confining medium
M. Faber, A. N.Ivanov, N.I.Troitskaya (Vienna Techn. Univ.)
TL;DR
This paper explores how the Nambu-Jona-Lasinio model can realize a confining medium through vacuum fluctuations, eliminating the need for Dirac strings, and providing insights into confinement mechanisms.
Contribution
It demonstrates a confining medium within the NJL model via bosonization and vacuum fluctuations, offering a novel perspective on confinement without Dirac strings.
Findings
Confining medium realized in NJL model's bosonized phase
Vacuum fluctuations of fermion and Higgs fields induce confinement
No Dirac strings needed for confinement in this approach
Abstract
The mechanism of a confining medium is investigated within the Nambu-Jona-Lasinio (NJL) approach. It is shown that a confining medium can be realized in the bosonized phase of the NJL model due to vacuum fluctuations of both fermion and Higgs (scalar fermion-antifermion collective excitation) fields. In such an approach there is no need to introduce Dirac strings.
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Taxonomy
TopicsQuantum, superfluid, helium dynamics · Physics of Superconductivity and Magnetism · Cold Atom Physics and Bose-Einstein Condensates