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Solving the ${\rm U(2)}_L \times {\rm U(...
Thies, Michael...
Solving the ${\rm U(2)}_L \times {\rm U(2)}_R$ symmetric Nambu--Jona-Lasinio model in 1+1 dimensions by Thies, Michael ( Author )
Australian National University
08-08-2023
A less well known variant of the Nambu--Jona-Lasinio model with Nc colors and U(2)L X U(2)R chiral symmetry is studied in 1+1 dimensions. Using semi-classical methods appropriate for the large Nc limit, we determine the vacuum manifold, the meson spectrum, massless and massive multi-fermion bound states and the phase diagram as a function of temperature, chemical potential and isospin chemical potential. An important tool to understand soliton dynamics is the generalization of the time-dependent Hartree-Fock approach to two flavors along the lines recently developed by Takahashi in the context of unconventional fermionic superfluids and superconductors.
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Article
pdf
29.34 KB
English
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MYR 0.01
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http://arxiv.org/abs/1603.06218
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