On the production of open strings from brane anti-brane annihilation | Zendy

Louis Leblond | Zendy

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On the production of open strings from brane anti-brane annihilation

Author(s) -

Louis Leblond

Publication year - 2006

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 - 10.1088/1126-6708/2006/01/033

Subject(s) - physics , brane , string (physics) , string cosmology , d brane , theoretical physics , boundary (topology) , annihilation , brane cosmology , conformal field theory , conformal map , quantum electrodynamics , mathematical physics , relationship between string theory and quantum field theory , quantum mechanics , geometry , mathematics , mathematical analysis , quantum , quantum gravity

We investigate the leading contribution to open string production in the timedependent background of the Brane Anti-Brane. This is a 1-loop diagram and weuse Boundary Conformal Field Theory (BCFT) techniques to study it. We show thatthe amplitude to a single open string naively diverges when one looks at it asan expansion in oscillator levels. Nevertheless, we show that once we sum overall oscillator levels we get a finite result. We also clarify where to performthe inverse Wick rotation in this kind of problems. This calculation could haveimportant consequences for the theory of reheating in brane inflationarymodels.Comment: 24 pages, 6 figures; references added, typos corrected, accepted for publication in JHE

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