Abstract:
We evaluate gauge invariants (the action and the gauge-invariant overlap) for numerical solutions satisfying the "a-gauge" condition with various values of a in the 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 analytic solutions are gauge equivalent.
Keywords:
string field theory, tachyon condensation, gauge-invariant overlap.
This publication is cited in the following 5 articles:
Kishimoto I., “Numerical Universal Solutions in a-Gauge in Open String Field Theory”, Prog. Theor. Exp. Phys., 2021:12 (2021), 123B04
Kishimoto I. Takahashi T., “Numerical Twist-Even Su(1,1)-Singlet Solutions in Open String Field Theory Around the Identity-Based Solution”, J. High Energy Phys., 2021, no. 2, 133
E. Aldo Arroyo, Matěj Kudrna, “Numerical solution for tachyon vacuum in the Schnabl gauge”, J. High Energ. Phys., 2020:2 (2020)
Aldo Arroyo E. Fernandes-Silva A. Szitas R., “Numerical Solution of Open String Field Theory in Schnabl Gauge”, J. High Energy Phys., 2018, no. 1, 007
Kishimoto I., “On Numerical Solutions in Open String Field Theory”, Progr Theoret Phys Suppl, 2011, no. 188, 155–162