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A method used in quantum mechanics in which unwanted infinities are removed from the solutions of equations by redefining parameters such as the mass and charge of subatomic particles.
‘‘If you remove the high-energy scale through the process of renormalization, the spectral features are very sharp,’ Phillips said.’
‘Using the method of renormalization which he also developed Schwinger was able to prove that a small anomalous contribution should be added to the value of the magnetic moment accepted until then.’
‘This phenomenon, coupled with highly nonlinear absorption and heavy pump beam attenuation, makes extraction of quantitative information from emission or excitation data very difficult without appropriate renormalization.’
‘The solution was a trick called renormalization, worked out by Feynman, Julian Schwinger, Sin-Itiro Tomonaga and Freeman Dyson.’