Quantum Decoherence in a D-Foam Background
摘要
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.
引用
@article{arxiv.hep-th/9704169,
title = {Quantum Decoherence in a D-Foam Background},
author = {John Ellis and N. E. Mavromatos and D. V. Nanopoulos},
journal= {arXiv preprint arXiv:hep-th/9704169},
year = {2009}
}
备注
16 pages, Latex, two eps figures included