Horizon Strings and Interior States of a Black Hole

TL;DR

This paper constructs classical strings attached to black hole horizons in 2D Lorentzian spacetime, proposing a duality with horizon-localized geodesics and winding strings, which could shed light on black hole information loss within string theory.

Contribution

It explicitly constructs horizon-attached classical strings and links them to horizon geodesics and winding strings, offering a new perspective on black hole microstates.

Findings

Classical strings with endpoints on the horizon are constructed.

Horizon strings are dual to horizon-localized geodesics.

Potential implications for understanding black hole information loss.

Abstract

We provide an explicit construction of classical strings that have endpoints on the horizons of the 2D Lorentzian black hole. We argue that this is a dual description of geodesics that are localized around the horizon which are the Lorentzian counterparts of the winding strings of the Euclidean black hole (the cigar geometry). Identifying these with the states of the black hole, we can expect that issues of black hole information loss can be posed sharply in terms of a fully quantizable string theory.