Survey of the Tachyonic Lump in Bosonic String Field Theory

Details Survey of the Tachyonic Lump in Bosonic String Field Theory Survey of the Tachyonic Lump in Bosonic String Field Theory

2001-06-08

arxiv.org/abs/hep-th/0106068v2

JHEP 0108:011,2001

Physics

High Energy Physics

High Energy Physics - Theory

29 pages, 10 figures. v2: 2 references added

Scientific paper

10.1088/1126-6708/2001/08/011

We study some properties of the tachyonic lumps in the level truncation scheme of bosonic cubic string field theory. We find that several gauges work well and that the size of the lump as well as its tension is approximately independent of these gauge choices at level (2,4). We also examine the fluctuation spectrum around the lump solution, and find that a tachyon with m^2=-0.96 and some massive scalars appear on the lump world-volume. This result strongly supports the conjecture that a codimension 1 lump solution is identified with a D-brane of one lower dimension within the framework of bosonic cubic string field theory.

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