Closed strings tachyons and noncommutative instabilities
Jan, 2003
26 pages
Published in:
- JHEP 02 (2003) 020
e-Print:
- hep-th/0301099 [hep-th]
Report number:
- CERN-TH-2002-386,
- IFT-UAM-CSIC-02-58,
- FT-UAM-02-33
Citations per year
Abstract:
We observe a relation between closed strings tachyons and one-loop instabilities in non-supersymmetric non-commutative gauge theories. In particular we analyze the spectra of type IIB string theory on C^3/Z_N orbifold singularities and the non-commutative field theory that lives on D3 branes located at the singularity. We find a surprising correspondence between the existence or not of one-loop low-momentum instabilities in the non-commutative field theory and the existence or not of tachyons in the closed string twisted sectors. Moreover, the relevant piece of the non-commutative field theory effective action is suggestive of an exchange of closed string modes. This suggests that non-commutative field theories retain some information about the dynamics of the underlying string configuration. Finally, we also comment on a possible relation between closed string tachyon condensation and field theory tachyon condensation.- string model
- supersymmetry
- string: closed
- effective action
- gauge field theory: Yang-Mills
- orbifold: C(3)/Z(N)
- expansion 1/N
- differential geometry: noncommutative
- membrane model: D-brane
- membrane model: p-brane
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