Induced charges and fields in QGP and dense fermion media inmagnetic fields at finite temperature
Семинары
Cеминар «Теория адронного вещества при экстремальных условиях»
Дата и время: среда, 18 декабря 2019 г., в 16:00
Место: Конференц-зал им. Блохинцева (4-й этаж), Лаборатория теоретической физики им. Н.Н. Боголюбова
Тема семинара: «Induced charges and fields in QGP and dense fermion media inmagnetic fields at finite temperature»
Докладчик: В. В. Скалозуб (Днепровский национальный университет им. Олеся Гончара, Днепропетровск, Украина)
Аннотация:
In QCD, the deconfinement phase transition is accompanied by the creation of the A0=const gluon condensate and strong temperature-dependent chromomagnetic H3, H8 and usual magnetic Hem fields. Gauge invariance of the A0 condensation is proven within the Nielsen identity method. It is shown that the effective action accounting for the one-loop, two-loop and plasmon diagrams satisfies the Nielsen identity. At this background, the colour charges Q3ind and Q8ind are generated. They are temperature dependent and produce related color electric fields E3color and E8color. Similar phenomenon — generation of induced electric charge Qelind and electric field Eind — happens in a dense fermionic media with non-zero chemical potential. We investigate that at finite temperature and external magnetic field. All these may serve as the signals of the phase transitions — the creation of either quark-gluon plasma or fermionic media.