Properties of D-Branes in Matrix Model of IIB Superstring

TL;DR

This paper investigates D-brane configurations within the matrix model of type IIB superstring theory, calculating supersymmetry charges, analyzing classical brane solutions, and exploring their interactions to deepen understanding of the model's properties.

Contribution

It provides new calculations of supersymmetry central charges and classical brane solutions in the matrix model of IIB superstring theory, linking them to known branes.

Findings

Central charges correspond to one- and five-branes.

Classical solutions for static three- and five-branes are identified.

Interactions of branes are analyzed at one loop in the matrix model.

Abstract

We discuss properties of D-brane configurations in the matrix model of type IIB superstring recently proposed by Ishibashi, Kawai, Kitazawa and Tsuchiya. We calculate central charges in supersymmetry algebra at infinite N and associate them with one- and five-branes present in IIB superstring theory. We consider classical solutions associated with static three- and five-branes and calculate their interactions at one loop in the matrix model. We discuss some aspects of the matrix-model formulation of IIB superstring.