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arXiv · hep-th/9904207

Non-BPS States and Branes in String Theory

Ashoke Sen
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Abstract

We review the recent developments in our understanding of non-BPS states and branes in string theory. The topics include 1) construction of unstable non-BPS D-branes in type IIA and type IIB string theories, 2) construction of stable non-BPS D-branes on various orbifolds and orientifolds of type II string theories, 3) description of BPS and non-BPS D-branes as tachyonic soliton solutions on brane-antibrane pair of higher dimension, and 4) study of the spectrum of non-BPS states and branes on a system of coincident D-brane - orientifold plane system. Some other related results are also discussed briefly.

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Ashoke Sen. 1999-04-29. Non-BPS States and Branes in String Theory. https://doi.org/10.1088/0264-9381%2F17%2F5%2F334

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