Geodesic
Modeling the~QCD ground state in the~Hartree--Fock--Bogoliubov approximation
Teoretičeskaâ i matematičeskaâ fizika, Tome 160 (2009) no. 3, pp. 444-470

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We study quark behavior in a strong stochastic gluon field. Based on the procedure of the averaged description, we derive the effective Hamiltonian and find its ground state in the Hartree–Fock–Bogoliubov approximation. We compare different model Hamiltonians. We discuss the chiral limit transition in detail in the example of the Keldysh model.
Keywords: instanton model, Nambu–Jona-Lasinio model, Keldysh model,Hartree–Fock–Bogoliubov approximation. 
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     author = {G. M. Zinovjev and S. V. Molodtsov},
     title = {Modeling {the~QCD} ground state in {the~Hartree--Fock--Bogoliubov} approximation},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {444--470},
     publisher = {mathdoc},
     volume = {160},
     number = {3},
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     url = {http://geodesic.mathdoc.fr/item/TMF_2009_160_3_a2/}
}
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G. M. Zinovjev; S. V. Molodtsov. Modeling the~QCD ground state in the~Hartree--Fock--Bogoliubov approximation. Teoretičeskaâ i matematičeskaâ fizika, Tome 160 (2009) no. 3, pp. 444-470. http://geodesic.mathdoc.fr/item/TMF_2009_160_3_a2/