Symmetry Restoration and Tachyon Condensation in Open String Theory
Author
Gopakumar, Rajesh
Minwalla, Shiraz
Strominger, Andrew
Published Version
https://doi.org/10.1088/1126-6708/2001/04/018Metadata
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Gopakumar, Rajesh, Shiraz Minwalla, and Andrew Strominger. 2001. “Symmetry Restoration and Tachyon Condensation in Open String Theory.” Journal of High Energy Physics 2001 (4): 018–018. https://doi.org/10.1088/1126-6708/2001/04/018.Abstract
It has recently been argued that D-branes in bosonic string theory can be described as noncommutative solitons, outside whose core the tachyon is condensed to its ground state. We conjecture that, in addition, the local U(1) gauge symmetry is restored to a U(infinity) symmetry in the vacuum outside this core. We present new solutions obeying this boundary condition. The tension of these solitons agrees exactly with the expected D-brane tension for arbitrary noncommutativity parameter theta, which effectively becomes a dynamical variable. The restored U(infinity) eliminates unwanted extra modes which might otherwise appear outside the soliton core.Terms of Use
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