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arXiv · 2601.17384

The Universe as a Detector: A Quantum Filtering Formulation of the Di\'osi-Penrose Model

John Gough·Dylon Rees
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Abstract

We consider the Di\'osi-Penrose problem but rather than postulating background gravitational fluctuations, we instead consider the quantum filter that arises from space-time homodyning the continuum of output quadrature described in the open quantum stochastic model presented here. This is described by a quantum Kushner-Stratonovich equation, typical of the form appearing in continuous-time collapse of the wave-function models in Quantum Decoherence Theory

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John Gough, Dylon Rees. 2026-01-24. The Universe as a Detector: A Quantum Filtering Formulation of the Di\'osi-Penrose Model. https://doi.org/10.1103/945v-yvvk

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