Search results for "Self-Energie"

showing 2 items of 2 documents

Vacuum local and global electromagnetic self-energies for a point-like and an extended field source

2013

We consider the electric and magnetic energy densities (or equivalently field fluctuations) in the space around a point-like field source in its ground state, after having subtracted the spatially uniform zero-point energy terms, and discuss the problem of their singular behavior at the source's position. We show that the assumption of a point-like source leads, for a simple Hamiltonian model of the interaction of the source with the electromagnetic radiation field, to a divergence of the renormalized electric and magnetic energy density at the position of the source. We analyze in detail the mathematical structure of such singularity in terms of a delta function and its derivatives. We als…

High Energy Physics - TheoryPhysicsQuantum PhysicsFinite volume methodPhysics and Astronomy (miscellaneous)Field (physics)Magnetic energyFOS: Physical sciencesDirac delta functionCasimir-Polder InteractionsElectromagnetic radiationZero-Point Energysymbols.namesakeSingularityHigh Energy Physics - Theory (hep-th)Position (vector)Quantum electrodynamicsSelf-EnergiesymbolsQuantum FluctuationQuantum Physics (quant-ph)Ground stateEngineering (miscellaneous)The European Physical Journal C
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Pinch technique for Schwinger-Dyson equations

2007

40 pages, 11 figures.-- ISI Article Identifier: 000245922000041.-- ArXiv pre-print available at: http://arxiv.org/abs/hep-ph/0611354

Nuclear and High Energy PhysicsParticle physicsGeneralizationStructure (category theory)FOS: Physical sciencesContext (language use)Skeleton (category theory)Theoretical physicsHigh Energy Physics - Phenomenology (hep-ph)Self-energiesBackground-field MethodAbelian Gauge TheoriesPhysicsBackground field methodScalar (physics)FísicaPerturbation-theoryEffective ChargeFundamental interaction3-point VertexHigh Energy Physics - PhenomenologyNonperturbative EffectsQuantum Chromodynamics (QCD)Gauge SymmetryPinchBRST SymmetryJournal of High Energy Physics
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