Scattering of Noncommutative Strings: A Note on Signature Change at Planck Scale

Abstract

We compute the S-matrix, for the scattering of two string states, on a noncommutative D3-brane in a path integral formalism. Our analysis attempts to resolve the issue of ``imaginary string'', originally raised by `t Hooft in a point-particle scattering at Planck energy, by incorporating a notion of signature change on an emerging semi-classical D-string in the theory.

13 pages, 2 figures

References in corpus (6)

• Dirichlet-Branes and Ramond-Ramond Charges
• Scattering at Planckian Energies
• Signature Change on the Brane
• Brane-Induced Gravity's Shocks
• Planckian Scattering of Non-abelian Gauge Particles
• Interaction of D-string with F-string: A Path-Integral Formalism

Cited by in corpus (9)

• Noncommutative $D_3$-brane, Black Holes and Attractor Mechanism
• Tunneling between de Sitter and anti de Sitter black holes in a noncommutative D3-brane formalism
• Lorentzian and signature changing branes
• Black Hole Geometries in Noncommutative String Theory
• Discrete torsion, de Sitter tunneling vacua and AdS brane: U(1) gauge theory on D4-brane and an effective curvature
• Quantum Kerr tunneling vacua on a $(D\bar{D}{)}_4$-brane: An emergent Kerr black hole in five dimensions
• Noncommutative brane-world, (Anti) de Sitter vacua and extra dimensions
• Emergent Schwarzschild and Reissner-Nordstrom black holes in 4D: An effective curvature sourced by a B2-field on a D4-brane
• Quantum Kerr(Newman) degenerate stringy vacua in 4D on a non-BPS brane