Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
1998-08-24
JHEP 9809:023,1998
Physics
High Energy Physics
High Energy Physics - Theory
LaTeX file, 31 pages
Scientific paper
10.1088/1126-6708/1998/09/023
We construct the SO(32) spinor state in weakly coupled type I string theory as a kink solution of the tachyon field on the D-string - anti-D-string pair and calculate its mass. We also give a description of this system in terms of an exact boundary conformal field theory and show that in this description this state can be regarded as a non-supersymmetric D0-brane in type I string theory. This construction can be generalised to represent the D0-brane in type IIA string theory as a vortex solution of the tachyon field on the membrane anti-membrane pair, and the D-string of type I string theory as a topological soliton of the tachyon field on the D5-brane anti- D5-brane pair.
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