Semantic Scholar
Open Access
2007
8 sitasi
Comments on geometric and universal open string tachyons near fivebranes
D. Israel
Abstrak
In a recent paper (hep-th/0703157), Sen studied unstable D-branes in NS5-branes backgrounds and argued that in the strong curvature regime the universal open string tachyon (on D-branes of the wrong dimensionality) and the geometric tachyon (on D-branes that are BPS in flat space but not in this background) may become equivalent. We study in this note an example of a non-BPS suspended D-brane vs. a BPS D-brane at equal distance between two fivebranes. We use boundary worldsheet CFT methods to show that these two unstable branes are identical.
Topik & Kata Kunci
Penulis (1)
D
D. Israel
Akses Cepat
Informasi Jurnal
- Tahun Terbit
- 2007
- Bahasa
- en
- Total Sitasi
- 8×
- Sumber Database
- Semantic Scholar
- DOI
- 10.1088/1126-6708/2007/04/085
- Akses
- Open Access ✓