Sphere-like Solutions in Surface Functional Theory and Dirac's Membrane Model

TL;DR

This paper analyzes the mass spectrum of sphere-like p-branes within a surface functional theory, revealing asymptotic behaviors and similarities to Dirac's electron membrane model, especially in the point-particle limit.

Contribution

It provides the asymptotic distribution of mass spectrum for sphere-like membranes in four dimensions, extending previous exact solutions for toroidal p-branes.

Findings

Mass spectrum asymptotics for sphere-like membranes in 4D

Similarity between p-brane spectrum and Dirac's electron model

Extension of exact solutions to new membrane configurations

Abstract

A surface functional theory for p-dimensional extended objects, the p-branes, was proposed in previous papers. The field equations for toroidal p-branes was exactly solved in $d=p+2$ dimensions, yielding equally spaced mass-squared spectrum with massless states. In this paper, we obtain the asymptotic distribution of mass spectrum in the point-particle limit of the theory with sphere-like membranes ($p=2$) in $d=4$ dimensions. Similarity between this spectrum and that obtained in the Dirac's membrane model of electron is discussed.