Level truncation analysis of exact solutions in open string field theory

Published 2 January 2008 Published under licence by IOP Publishing Ltd
, , Citation Tomohiko Takahashi JHEP01(2008)001 DOI 10.1088/1126-6708/2008/01/001

1126-6708/2008/01/001

Abstract

We evaluate vacuum energy density of Schnabl's solution using the level truncation calculation and the total action including interaction terms. The level truncated solution provides vacuum energy density expected both for tachyon vacuum and trivial pure gauge. We discuss the role of the phantom term to reproduce correct vacuum energy.

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10.1088/1126-6708/2008/01/001