Virial coefficients from (2+1)-dimensional QED effective actions at finite temperature and density

Borges, P. F.Boschi, H.Hott, M.2014-05-202014-05-202002-10-10Modern Physics Letters A. Singapore: World Scientific Publ Co Pte Ltd, v. 17, n. 31, p. 2079-2087, 2002.0217-7323http://hdl.handle.net/11449/39180From spinor and scalar (2 + 1)-dimensional QED effective actions at finite temperature and density in a constant magnetic field background, we calculate the corresponding virial coefficients for particles in the lowest Landau level. These coefficients depend on a parameter theta related to the time-component of the gauge field, which plays an essential role for large gauge invariance. The variation of the parameter theta might lead to an interpolation between fermionic and bosonic virial coefficients, although these coefficients are singular for theta = pi/2.2079-2087engquantum electrodynamicslow dimensionsstatistical mechanicsVirial coefficients from (2+1)-dimensional QED effective actions at finite temperature and densityArtigo10.1142/S0217732302008630WOS:000179483000006Acesso restrito