Open AccessA note on the singularity theorem for supergravity SD-branes
Author(s) -
Frederic Leblond,
Amanda W Peet
Publication year - 2004
Publication title -
journal of high energy physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.998
H-Index - 261
eISSN - 1126-6708
pISSN - 1029-8479
DOI - 10.1088/1126-6708/2004/04/022
Subject(s) - physics , singularity , tachyon , supergravity , mathematical physics , theoretical physics , naked singularity , initial singularity , cosmology , point (geometry) , essential singularity , relation (database) , no go theorem , classical mechanics , work (physics) , quantum gravity , quantum no deleting theorem , string theory , quantum mechanics , quantum , singularity theory
Recently, a singularity theorem for full SD-brane spacetimes was given inhep-th/0305055. We comment on the relation between this and previous work aswell as provide a more geometric formulation interpreted as a no-go theorem. Wethen point out that some setups of physical interest escape the theorem:cosmological applications, half-SDp-branes and decaying unstable Dp-branes forgeneral p. We also provide indications that the space-filling full SD8-brane(in d=10) escapes as well, because of the important role of Ramond-Ramondfields. In any case, tachyon cosmology is not ruled out by the no-go theorem.Lastly, we remark upon interesting directions for potential generalizations ofthe theorem, and quantum corrections.Comment: 17 pages, 8 figure
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom