Roberge-Weiss phase transitions and extended Z3 symmetry

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dc.creatorKouno, H.
dc.creatorSakai, Y.
dc.creatorKashiwa, K.
dc.creatorMatsuzaki, M.
dc.creatorYahiro, M.
dc.date2008-11-28
dc.date.accessioned2026-07-07T12:11:52Z
dc.date.available2026-07-07T12:11:52Z
dc.descriptionUsing the Polyakov extended Nambu-Jona-Lasinio (PNJL) model with imaginary chemical potential, the relation between the Roberge-Weiss (RW) phase transition and the extended Z3 symmetry is studied. At low temperature, there is approximate continuous symmetry under the phase transformation of the Polyakov loop with the shift of the imaginary chemical potential. Due to this continuous symmetry, the Polyakov loop can oscillate smoothly as the imaginary chemical potential increases. At high temperature, this continuous symmetry is broken to an exact discrete symmetry, the extended Z3 symmetry, and the Polyakov loop can not oscillate smoothly. This symmetry breaking of the continuous symmetry causes a discontinuity of the Polyakov loop. That is the RW phase transition.
dc.description3 pages, 1 figure, to be published in the proceedings for the YITP workshop YITP-W-08-09 on "Thermal Quantum Field Theories and Their Applications", Kyoto, September 3-5, 2008
dc.identifierhttps://arxiv.org/abs/0811.4660
dc.identifierhttp://arxiv.org/abs/0811.4660
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/210363
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Lattice
dc.subjectHigh Energy Physics - Theory
dc.subjectNuclear Theory
dc.titleRoberge-Weiss phase transitions and extended Z3 symmetry
dc.typetext

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