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A 4d non-BPS NS-NS microstate by Chakraborty, Soumangsu; Hampton, Shaun D. is a scholarly article available to read on EtoBox.

What is A 4d non-BPS NS-NS microstate about?

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. $g_s\to 0$) NS5 branes wrapping $T^3\times S^1\times S^1$ with fundamental strings wrapping non-contractable cycles of $S^1\times S^1$ 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.

Author

Chakraborty, Soumangsu; Hampton, Shaun D.

Published

2023

Language

EN