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=

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 U(N) vectors which are responsible for the D-brane at the tachyon vacuum. Effective potential for the scalar is evaluated both for finite and large N. Increase of potential height is observed in both cases. The large N matrix integral is identified with a system of N ZZ branes and a ghost FZZT brane.