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Analytical Tachyonic Lump Solutions in Open Superstring Field Theory

Isao Kishimoto·Tomohiko Takahashi
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Abstract

We construct a classical solution in the GSO(-) sector in the framework of a Wess-Zumino-Witten-like open superstring field theory on a non-BPS D-brane. We use an su(2) supercurrent, which is obtained by compactifying a direction to a circle with the critical radius, in order to get analytical tachyonic lump solutions to the equation of motion. By investigating the action expanded around a solution we find that it represents a deformation from a non-BPS D-brane to a D-brane-anti-D-brane system at the critical value of a parameter which is contained in classical solutions. Although such a process was discussed in terms of boundary conformal field theory before, our study is based on open superstring field theory including interaction terms.

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Isao Kishimoto, Tomohiko Takahashi. 2005-11-01. Analytical Tachyonic Lump Solutions in Open Superstring Field Theory. https://doi.org/10.1088/1126-6708%2F2006%2F01%2F013

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