Quantum decoherence in a D foam background
Apr, 1997
16 pages
Published in:
- Mod.Phys.Lett.A 12 (1997) 1759-1773
e-Print:
- hep-th/9704169 [hep-th]
Report number:
- CERN-TH-97-058,
- CERN-TH-97-58,
- CTP-TAMU-22-97,
- ACT-07-97,
- OUTP-97-16-P
Citations per year
Abstract:
Within the general framework of Liouville string theory, we construct a model for quantum D-brane fluctuations in the space-time background through which light closed-string states propagate. The model is based on monopole and vortex defects on the world sheet, which have been discussed previously in a treatment of 1+1-dimensional black-hole fluctuations in the space-time background, and makes use of a T-duality transformation to relate formulations with Neumann and Dirichlet boundary conditions. In accordance with previous general arguments, we derive an open quantum-mechanical description of this D-brane foam which embodies momentum and energy conservation and small mean energy fluctuations. Quantum decoherence effects appear at a rate consistent with previous estimates.- string model
- field theory: Liouville
- membrane model: p-brane
- fluctuation
- duality: transformation
- coherence: decoherence
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