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arXiv · hep-th/0609208

The nonperturbative closed string tachyon vacuum to high level

Nicolas Moeller·Haitang Yang
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Abstract

We compute the action of closed bosonic string field theory at quartic order with fields up to level ten. After level four, the value of the potential at the minimum starts oscillating around a nonzero negative value, in contrast with the proposition made in [5]. We try a different truncation scheme in which the value of the potential converges faster with the level. By extrapolating these values, we are able to give a rather precise value for the depth of the potential.

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Nicolas Moeller, Haitang Yang. 2007-01-29. The nonperturbative closed string tachyon vacuum to high level. https://doi.org/10.1088/1126-6708%2F2007%2F04%2F009

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