The susceptibility exponent of Nambu-Goto strings

TL;DR

This paper calculates the string susceptibility exponent for Nambu-Goto strings in various dimensions, confirming previous lattice string results and enhancing understanding of string behavior in theoretical physics.

Contribution

It provides an exact computation of the string susceptibility exponent for regularized Nambu-Goto strings in multiple dimensions, aligning with prior lattice string findings.

Findings

=1/2 for 2<d<26

Results agree with lattice string calculations

Advances understanding of string susceptibility in theoretical models

Abstract

We compute the string susceptibility $\gamma_{str}$ for the regularized Nambu-Goto string in $d$ dimensions and obtain $\gamma_{str}=1/2 $ in $2<d<26$. This agrees with previous results obtained for lattice strings.