String Loop Corrections to Stable Non-BPS Branes

Details String Loop Corrections to Stable Non-BPS Branes String Loop Corrections to Stable Non-BPS Branes

2000-10-06

arxiv.org/abs/hep-th/0010045v2

JHEP 0102:018,2001

Physics

High Energy Physics

High Energy Physics - Theory

References added and some minor corrections

Scientific paper

10.1088/1126-6708/2001/02/018

We calculate the string loop corrections to the tachyon potential for stable non-BPS Dp-branes on the orbifold T^4/Z_2. We find a non-trivial phase structure and we show that, after tachyon condensation, the non-BPS Dp-branes are attracted to each other for p=0,1,2. We then identify the corresponding closed string boundary states together with the massless long range fields they excite. For p=3,4 the string loop correction diverge. We identify the massless closed string fields responsible for these divergencies and regularise the partition function using a Fischler-Susskind mechanism.

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