2011
DOI: 10.2478/s11534-010-0140-7
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Effective electromagnetic lagrangian at finite temperature and density in the electroweak model

Abstract: Abstract:Using the exact propagators in a constant magnetic field, the effective electromagnetic lagrangian at finite temperature and density is calculated to all orders in the field strength B within the framework of the complete electroweak model, in the weak coupling limit. The partition function and free energy are obtained explicitly and the finite temperature effective coupling is derived in closed form. Some implications of this result, potentially interesting to astrophysics and cosmology, are discusse… Show more

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Cited by 3 publications
(6 citation statements)
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“…(27) is within 0.2 percent of the exact value for √ eBa ≥ 2 and √ eB/T ≥ 2, with an accuracy similar to that of Eqs. (21) and (22).…”
Section: Discussionmentioning
confidence: 99%
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“…(27) is within 0.2 percent of the exact value for √ eBa ≥ 2 and √ eB/T ≥ 2, with an accuracy similar to that of Eqs. (21) and (22).…”
Section: Discussionmentioning
confidence: 99%
“…Notice that the arbitrary parameter µ has been replaced by m φ , and this replacement should also occur in Eqs. (18), (21), and (22), the other three expressions I obtained for the free energy.…”
Section: Strong Magnetic Fieldmentioning
confidence: 99%
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“…Once we compare Eq. (40) to the well known result for the Weisskopf Lagrangian [30,31], we realize that we must take the arbitrary parameter µ = M , and we'll do that in all our results containing µ. We evaluateζ(s) by using…”
Section: Zeta Function Evaluationmentioning
confidence: 99%
“…(57) where the dominant term is the one-loop vacuum effective potential for scalar QED [31], proportional to the volume of the slab. If we set M = 0 in (57), we reproduce the result of Ref.…”
Section: Free Energy and Casimir Pressurementioning
confidence: 99%