D3/D7 Inflation in a Type-0B String Background
Huan-Xiong Yang
TL;DR
This paper investigates D3/D7 inflation within Type 0B string theory, highlighting the role of the closed string tachyon and gauge flux in shaping the inflaton potential and cosmological constant.
Contribution
It introduces a novel inflation model in Type 0B string theory incorporating tachyon effects and arbitrary gauge flux, affecting the inflaton potential and cosmological constant.
Findings
The inflaton potential is attractive due to the tachyon and flux effects.
A positive cosmological constant emerges, linked to the D7-brane volume.
The gauge flux on D7-branes can be almost arbitrary, influencing inflation dynamics.
Abstract
The D3/D7 inflation is studied in the framework of Type 0B string theory. Due to the presence of the closed string tachyon, the constant gauge field flux on the transverse worldvolume of D7-brane is almost arbitrary in having an attractive inflaton potential energy. Besides, a positive cosmological constant appears in this model whose magnitude is related to the volume modulus of the D7-brane transverse worldvolume.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
Taxonomy
TopicsCosmology and Gravitation Theories · Black Holes and Theoretical Physics · Galaxies: Formation, Evolution, Phenomena