How do renormalization and dressed particles eliminate self-energy?
2009年6月25日 · The reason of appearing self-energy terms is the self-interaction term in the initial Hamiltonian. Renormalizations remove the effect of self-action. I explained it on a very …
Potential/self energy of a charged spherical shell - Physics Forums
2008年2月1日 · The total PE, calculated with the potential set to zero at infinity, can never be extracted, because we can never send all of the charge to infinity, but part of this total self …
What Is the Self-Energy of an Electron? - Physics Forums
2004年3月16日 · In textbook (ohanian) says that it takes work to assemble the point charge out of infinitesimal pieces of charge.The energy needed to assemble the point charge is called the …
Infinite Self-Energy of a Charged Point Particle - Physics Forums
2009年2月17日 · The typical place where the self-energy of a point charge is considered is in deriving the motion of such an object. Roughly, you get an equation that looks like [tex] m a = …
Electron Self-Energy: QED Calculation & Verification - Physics …
2011年3月15日 · Hi, I have been calculating the 3 infinities in QED as part of my project (vacuum polarisation, vertex corrections and electron self energy). Mostly I have been following the …
Electrostatic Self-Energy of a Uniform Density Sphere of Charge
2007年11月12日 · To find the total electrostatic self-energy of the sphere, we would need to integrate this equation over the entire volume of the sphere, taking into account all possible …
A question about the electron self-energy correction - Physics …
2016年12月15日 · The self-energy is defined as a correction to the single-electron propagator, i.e., it's a one-particle irreducible truncated two-point function. It's entering the higher-order …
What is the self energy of electrons and how can it be calculated ...
2005年2月8日 · Any graduate level text (Jackson, Panofsky and Phillips) will discuss the self energy problem. Your approaches are not unreasonable, and the last is more-or-less standard …
How to calculate self energy Feynman diagram like that - Physics …
2016年10月4日 · The self energy ##\Sigma(p)## is usually defined as just the 1PI blob, for which at lowest order your diagram would contribute. There are no spinors involved. You can of …
Calculating Self-Energy Correction to Electron Propagator
2010年12月29日 · The self-energy correction is calculated using perturbation theory, which involves expanding the energy of the electron as a series of terms. The first-order term is the …