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arXiv · hep-th/9704169

Quantum Decoherence in a D-Foam Background

John Ellis·N. E. Mavromatos·D. V. Nanopoulos
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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.

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John Ellis, N. E. Mavromatos, D. V. Nanopoulos. 1997-04-24. Quantum Decoherence in a D-Foam Background. https://doi.org/10.1142/s0217732397001795

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