# The semi-classical energy of the Chodos-Thorn string

## TL;DR

This paper calculates semi-classical energy corrections for rotating Nambu-Goto strings with endpoint masses, confirming the Regge intercept in large angular momentum limit, with a note on a subsequent correction.

## Contribution

It introduces a method to compute semi-classical corrections for strings with masses at the ends, extending previous results on Regge intercepts.

## Key findings

- Recovered the Regge intercept $a = 1 + rac{D-2}{24}$ in the large angular momentum limit
- Used quantum field theory on curved space-times to perform calculations
- Results are later corrected in a subsequent publication

## Abstract

We compute semi-classical corrections to the energy of rotating Nambu-Goto strings with masses at the ends, using methods from quantum field theory on curved space-times. In the limit of large angular momentum, we recover the Regge intercept $a = 1 + \frac{D-2}{24}$ for $D$ dimensional target space previously found for the open and closed string. [Result is wrong and corrected in 1605.07928]

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Source: https://tomesphere.com/paper/1703.03721