Thermal Operator and Cutting Rules at Finite Temperature and Chemical Potential

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dc.creatorBrandt, F. T.
dc.creatorDas, Ashok
dc.creatorEspinosa, Olivier
dc.creatorFrenkel, J.
dc.creatorPerez, Silvana
dc.date2006-07-25
dc.date2006-09-09
dc.date.accessioned2026-07-07T11:27:33Z
dc.date.available2026-07-07T11:27:33Z
dc.descriptionIn the context of scalar field theories, both real and complex, we derive the cutting description at finite temperature (with zero/finite chemical potential) from the cutting rules at zero temperature through the action of a simple thermal operator. We give an alternative algebraic proof of the largest time equation which brings out the underlying physics of such a relation. As an application of the cutting description, we calculate the imaginary part of the one loop retarded self-energy at zero/finite temperature and finite chemical potential and show how this description can be used to calculate the dispersion relation as well as the full physical self-energy of thermal particles.
dc.description17 pages, 13 figures. Added references, version to appear in Physical Review D
dc.identifierhttps://arxiv.org/abs/hep-th/0607196
dc.identifierhttp://arxiv.org/abs/hep-th/0607196
dc.identifierPhys.Rev.D74:085006,2006
dc.identifierdoi:10.1103/PhysRevD.74.085006
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/196180
dc.subjectHigh Energy Physics - Theory
dc.titleThermal Operator and Cutting Rules at Finite Temperature and Chemical Potential
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