A 4d non-BPS NS-NS microstate

2023/06/05 by Chakraborty, Soumangsu, Hampton, Shaun D.
#FOS: Physical sciences #High Energy Physics - Theory (hep-th)

paper · doi:10.48550/arxiv.2306.03167

Abstract

We construct a two-parameter four-dimensional non-BPS NS-NS smooth microstate solution that asymptotes to flat spacetime with a linear dilaton in type II superstring theory. From the microscopic point of view, the background is made out of a certain number of decoupled (i.e. g_s→ 0) NS5 branes wrapping T³× S¹× S¹ with fundamental strings wrapping non-contractable cycles of S¹× S¹ with integer momentum modes along them. We show that perturbative worldsheet theory in this background is given by a null-gauged WZW model. We also show that the consistency of the worldsheet theory imposes non-trivial constraints on the supergravity background.

Related

• Non-supersymmetric microstates of the D1-D5-KK system
• Non-supersymmetric microstates of the MSW system
• D-branes in the NS5 Near-horizon pp-Wave Background
• Global Structure of Five-dimensional BPS Fuzzballs
• On Supergravity and Noncritical Strings