Numerical Evaluation of Gauge Invariants for a-gauge Solutions in Open String Field Theory

Details Numerical Evaluation of Gauge Invariants for a-gauge Solutions in Open String Field Theory Numerical Evaluation of Gauge Invariants for a-gauge Solutions in Open String Field Theory

2009-10-16

arxiv.org/abs/0910.3025v1

Physics

High Energy Physics

High Energy Physics - Theory

12 pages, 3 figures; new numerical data up to level (20,60) included; Contribution to the proceedings of "Second International

Scientific paper

We evaluate gauge invariants, action and gauge invariant overlap, for numerical solutions which satisfy the "a-gauge" condition with various values of $a$ in cubic open bosonic string field theory. We use the level truncation approximation and an iterative procedure to construct numerical solutions in the twist even universal space. The resulting gauge invariants are numerically stable and almost equal to those of Schnabl's solution for tachyon condensation. Our result provides further evidence that these numerical and analytical solutions are gauge equivalent.

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