Tachyon condensation at one loop

D. Nemeschansky; V. Yasnov

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arXiv · hep-th/0408157

Tachyon condensation at one loop

D. Nemeschansky·V. Yasnov

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Abstract

Using boundary string field theory we study the decay of unstable D-branes to lower dimensional D-branes via the tachyon condensation at one loop level. We analyze one loop divergences and use the Fischler-Susskind mechanism to cancel divergences arising at the boundary of moduli space. The tachyon action up to the second derivative is obtained and a logarithmic correction to the tachyon potential is written down explicitly. Multiple D-branes is also considered and the role of the boundary fermions is highlighted.

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D. Nemeschansky, V. Yasnov. 2004-08-30. Tachyon condensation at one loop. https://arxiv.org/abs/hep-th/0408157

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