Testing closed string field theory with marginal fields

被引：0

作者：

Yang, HT ^{[1
]}

Zwiebach, B ^{[1
]}

机构：

[1] MIT, Ctr Theoret Phys, Cambridge, MA 02139 USA

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2005年 / 06期

关键词：

string field theory; bosonic strings;

D O I：

暂无

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We study the feasibility of level expansion and test the quartic vertex of closed string field theory by checking the flatness of the potential in marginal directions. The tests, which work out correctly, require the cancellation of two contributions: one from an infinite-level computation with the cubic vertex and the other from a finite-level computation with the quartic vertex. The numerical results suggest that the quartic vertex contributions are comparable or smaller than those of level four fields.

引用

页数：15

共 22 条

[1]

Beccaria M, 2003, J HIGH ENERGY PHYS

[2] OFF-SHELL CLOSED STRING AMPLITUDES - TOWARDS A COMPUTATION OF THE TACHYON POTENTIAL [J].