Tachyon Lump Solutions of Bosonic D-branes on SU(2) Group Manifolds in Cubic String Field Theory

TL;DR

This paper constructs tachyon lump solutions representing D0-branes on SU(2) group manifolds within cubic string field theory, demonstrating their energies align well with theoretical expectations.

Contribution

It introduces a level truncation approach to find explicit tachyon lump solutions on SU(2) manifolds, advancing the understanding of D-brane configurations in string field theory.

Findings

Solutions' energies match expected D0-brane values

Level truncation effectively captures D-brane physics

Provides explicit construction of tachyon lumps on SU(2)

Abstract

We construct tachyon lump solutions of bosonic D2-branes on SU(2) group manifolds by level truncation approximation in cubic string field theory, which are regarded as D0-branes. The energies for these solutions show good agreement with the expected values.