DBI Action from Closed Strings and D-brane second Quantization

TL;DR

This paper derives the DBI D-brane action from closed string theory, demonstrating that brane-like operators encode RR charges and enable a second quantized description of D-branes.

Contribution

It introduces a novel derivation of the DBI action from NSR closed strings and establishes a second quantization framework for D-branes using brane-like operators.

Findings

DBI action derived from closed string sigma-model

Brane-like operators carry RR charges

D-brane wavefunctions defined in second quantization

Abstract

Brane-like vertex operators play an important role in a worldsheet formulation of D-branes and M-theory. In this paper we derive the DBI D-brane action from NSR closed string sigma-model with brane-like states. We also show that these operators carry RR charges and define D-brane wavefunctions in a second quantized formalism.