Derivative Expansion and Soliton Masses

Abstract

We present a simple algorithm to implement the generalized derivative expansion introduced previously by L-H. Chan, and apply it to the calculation of the one-loop mass correction to the classical soliton mass in the 1+1 dimensional Jacobi model. We then show how this derivative expansion approach implies that the total (bosonic plus fermionic) mass correction in an N=1 supersymmetric soliton model is determined solely by the asymptotic values (and derivatives) of the fermionic background potential. For a static soliton the total mass correction is $-m/(2\pi )$, in agreement with recent analyses using phase-shift methods.

8 pages, 3 figures, RevTeX, uses epsfig.sty

References in corpus (1)

• Lam'e Instantons

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