Non-BPS D-brane Solutions in Six Dimensional Orbifolds

TL;DR

This paper constructs non-BPS D-brane solutions in six-dimensional orbifolds using T-duality, extending previous solutions and exploring their couplings and higher-dimensional origins.

Contribution

It introduces new non-BPS D1 and D2-brane solutions in orbifold backgrounds, derived via T-duality from known solutions, and discusses their M-theory interpretation.

Findings

Constructed non-BPS D2-brane and D1-brane solutions in orbifolds.

Analyzed the coupling of these branes to twisted sector fields.

Proposed an eleven-dimensional origin from non-BPS M1-branes.

Abstract

Starting with the non-BPS D0-brane solution of IIB/$(-1)^{F_L}I_4$ constructed recently by Eyras and Panda we construct via T-duality the non-BPS D2-brane and D1-brane solutions of IIB/$(-1)^{F_L}I_4$ and IIA/$(-1)^{F_L}I_4$ predicted by Sen. The D2-brane couples magnetically to the vector field of the NS5B-brane living in the twisted sector of the Type IIB orbifold, whereas the D1-brane couples (electrically and magnetically) to the self-dual 2-form potential of the NS5A-brane that is present in the twisted sector of the Type IIA orbifold construction. Finally we discuss the eleven dimensional interpretation of these branes as originating from a non-BPS M1-brane solution of M-theory orientifolded by $\Omega_\rho I_5$.