Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2001-08-14
Mod.Phys.Lett. A17 (2002) 2079
Physics
High Energy Physics
High Energy Physics - Theory
10 Latex pages, no figures. Version to appear in MPLA
Scientific paper
10.1142/S0217732302008630
From 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.
Borges P. F.
Boschi-Filho Henrique
Hott Marcelo
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