Closed String Brane-Like States, Brane Bound States and Noncommutative Branes

TL;DR

This paper investigates BPS brane bound states in closed string theory, demonstrating their realization via constant B fields and revealing noncommutative worldvolume coordinates, thus linking brane dynamics with noncommutative geometry.

Contribution

It introduces a method to realize (p,p-2)-brane bound states using constant B fields and shows their worldvolume coordinates are inherently noncommutative.

Findings

Brane bound states can be realized with constant B fields.

Worldvolume coordinates of these states are noncommutative.

The study connects brane dynamics with noncommutative geometry.

Abstract

We study the mass and different RR charge distributions of the BPS (p,p-2)-brane bound states in the closed string brane-like $\sigma$-model. We show that such brane bound states can be realized by introducing a constant B field in the closed string theory. In addition we show that the worldvolume coordinates of these brane bound states turn out to be noncommutative.