AUTHOR=Zeze Syoji 

TITLE=A Matrix Model from String Field Theory

JOURNAL=Frontiers in Physics

VOLUME=4

YEAR=2016

URL=https://www.frontiersin.org/journals/physics/articles/10.3389/fphy.2016.00039

DOI=10.3389/fphy.2016.00039

ISSN=2296-424X

ABSTRACT=<p>We demonstrate that a Hermitian matrix model can be derived from level truncated open string field theory with Chan-Paton factors. The Hermitian matrix is coupled with a scalar and <italic>U</italic>(<italic>N</italic>) vectors which are responsible for the D-brane at the tachyon vacuum. Effective potential for the scalar is evaluated both for finite and large <italic>N</italic>. Increase of potential height is observed in both cases. The large <italic>N</italic> matrix integral is identified with a system of <italic>N</italic> ZZ branes and a ghost FZZT brane.</p>