Virial coefficients from (2+1)-dimensional QED effective actions at finite temperature and density
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Data
2002-10-10
Autores
Borges, P. F.
Boschi, H.
Hott, M.
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World Scientific Publ Co Pte Ltd
Resumo
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.
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quantum electrodynamics, low dimensions, statistical mechanics
Como citar
Modern Physics Letters A. Singapore: World Scientific Publ Co Pte Ltd, v. 17, n. 31, p. 2079-2087, 2002.