Zobrazeno 1 - 4
of 4
pro vyhledávání: '"Yu. G. Molotkov"'
Publikováno v:
Theoretical and Mathematical Physics. 200:1360-1373
We construct a quantum kinetic theory of a weakly interacting critical boson gas using the expectation values of products of Heisenberg field operators in the grand canonical ensemble. Using a functional representation for the Wick theorem for time-o
Publikováno v:
Theoretical and Mathematical Physics. 200:1237-1251
In papers devoted to superfluidity, the generally accepted statement that the dynamics of the corresponding phase transition is described by the stochastic model F or E can be frequently found. Nevertheless, the dynamical critical index has not been
Publikováno v:
Nuclear Physics
Nuclear Physics B, Vol 939, Iss, Pp 105-129 (2019)
Nuclear Physics B, Vol 939, Iss, Pp 105-129 (2019)
An effective large-scale model of interacting boson gas at low temperatures is constructed from first principles. The starting point is the generating function of time-dependent Green functions at finite temperature. The perturbation expansion is wor
Publikováno v:
EPJ Web of Conferences, Vol 226, p 01005 (2020)
Dynamic behaviour of a boson gas near the condensation transition in the symmetric phase is analyzed with the use of an effective large-scale model derived from time-dependent Green functions at finite temperature. A renormalization-group analysis sh