Light-cone reduction of Witten’s open string field theory

Hiroaki Matsunaga

doi:10.1007/jhep04(2019)143

Light-cone reduction of Witten’s open string field theory

DOI PDF Web Site 被引用文献2件

Hiroaki Matsunaga

書誌事項

公開日: 2019-04

権利情報

https://creativecommons.org/licenses/by/4.0/
https://creativecommons.org/licenses/by/4.0/

DOI

10.1007/jhep04(2019)143

公開者: Springer Science and Business Media LLC

説明

<jats:title>A<jats:sc>bstract</jats:sc> </jats:title> <jats:p>We elucidate some exact relations between light-cone and covariant string field theories on the basis of the homological perturbation lemma for <jats:italic>A</jats:italic> <jats:sub>∞</jats:sub>. The covariant string field splits into the light-cone string field and trivial excitations of BRST quartets: the latter generates the gauge symmetry and covariance. We first show that the reduction of gauge degrees can be performed by applying the lemma, which gives a refined version of the no-ghost theorem of covariant strings. Then, we demonstrate that after the reduction, gauge-fixed theory can be regarded as a kind of effective field theory and it provides an exact gauge-fixing procedure taking into account interactions. As a result, a novel light-cone string field theory is obtained from Witten’s open string field theory.</jats:p>