Strings, T-duality breaking, and nonlocality without the shortest distance

TL;DR

This paper proposes a nonlocal string theory formulation that breaks T-duality, allowing strings to have an objective shape at all scales without a minimal distance, challenging traditional notions of spacetime locality.

Contribution

It introduces a nonlocal string theory model that breaks T-duality, providing an alternative to the concept of a shortest possible distance in string theory.

Findings

Strings have an objective shape at all scales.

Nonlocal interactions replace the shortest distance concept.

T-duality is broken at the fundamental level.

Abstract

T-duality of string theory suggests nonlocality manifested as the shortest possible distance. As an alternative, we suggest a nonlocal formulation of string theory that breaks T-duality at the fundamental level and does not require the shortest possible distance. Instead, the string has an objective shape in spacetime at all length scales, but different parts of the string interact in a nonlocal Bohmian manner.