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BPS D-branes from an unstable D-brane

Title
BPS D-branes from an unstable D-brane
Authors
Kim C.Kim Y.Kwon H.-H.Kwon O.-K.Lee C.O.
Ewha Authors
김찬주
SCOPUS Author ID
김찬주scopus
Issue Date
2005
Journal Title
AIP Conference Proceedings
ISSN
0094-243XJCR Link
Citation
vol. 805, pp. 407 - 410
Indexed
SCOPUS scopus
Abstract
We search for exact tachyon kink solutions of DBI type effective action describing an unstable D-brane with worldvolume gauge field turned in both the flat and a curved background. There are various kinds of solutions in the presence of electromagnetic fields in the flat space, such as periodic arrays, topological tachyon kinks, half kinks, and bounces. We identify a BPS object, D(p-1)F1 bound state, which describes a thick brane with string flux density. The curved background of interest is the ten-dimensional lift of the Salam-Sezgin vacuum and, in the asymptotic limit, it approaches R 1,4 × T 2 × S 3. The solutions in the curved background are identified as composites of lower-dimensional D-branes and fundamental strings, and, in the BPS limit, they become a D4D2F1 composite wrapped on R 1,2 × T 2 where T 2 is inside S 3. © 2005 American Institute of Physics.
DOI
10.1063/1.2149742
ISBN
0735402957; 9780735402959
Appears in Collections:
자연과학대학 > 물리학전공 > Journal papers
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