Classical fields method for a relativistic interacting Bose gas
نویسندگان
چکیده
Emilia Witkowska, Paweł Ziń, and Mariusz Gajda Institute of Physics, Polish Academy of Sciences, al. Lotników, 02-668 Warsaw, Poland Institute for Theoretical Physics, Warsaw University, ul. Hoża 69, 00-681 Warsaw, Poland Soltan Institute for Nuclear Studies, ul. Hoża 69, 00-681 Warsaw, Poland Faculty of Mathematics and Natural Sciences, College of Sciences, Cardinal’s Stefan Wyszyński University, ul. Dewajtis, 01-815 Warsaw, Poland (Received 19 June 2008; revised manuscript received 25 November 2008; published 8 January 2009)
منابع مشابه
Variational Calculations for the Relativistic Interacting Fermion System at Finite Temperature: Application to Liquid 3He
In this paper, at first we have formulated the lowest order constrained variational method for the relativistic case of an interacting fermion system at finite temperature. Then we have used this formalism to calculate some thermodynamic properties of liquid in the relativistic regime. The results show that the difference between total energies of relativistic and non-relativistic cases of liqu...
متن کاملCalculation of Quasi-one-dimensional Interacting Electron Gas Using the Hartree-Fock Method
In this paper, the Hartree-Fock method has been formulated to investigate some of the ground state properties of quasi-one-dimensional interacting electron gas in the presence of the magnetic field. The bare coulomb interaction between electrons has been assumed. For this system, we have also computed some of its thermodynamic and magnetic properties such as the energy, pressure, incompressibil...
متن کاملSimple theoretical tools for low dimension Bose gases
We first consider an exactly solvable classical field model to understand the coherence properties and the density fluctuations of a one-dimensional (1D) weakly interacting degenerate Bose gas with repulsive interactions at temperatures larger than the chemical potential. In a second part, using a lattice model for the quantum field, we explain how to carefully generalize the usual Bogoliubov a...
متن کاملTowards a Realistic Equation of State of Strongly Interacting Matter
We consider a relativistic strongly interacting Bose gas. The interaction is manifested in the off-shellness of the equilibrium distribution. The equation of state that we obtain for such a gas has the properties of a realistic equation of state of strongly interacting matter, i.e., at low temperature it agrees with the Bitnet: [email protected]. Bitnet: [email protected]. Also ...
متن کاملClassical region of a trapped Bose gas
The classical region of a Bose gas consists of all single particle modes that have a high average occupation and are well described by a classical field. Highly occupied modes only occur in massive Bose gases at ultra-cold temperatures, in contrast to the photon case where there are highly occupied modes at all temperatures. For the Bose gas the number of these modes is dependent on the tempera...
متن کامل