2 papers
quant-ph2026
Quantum Filtering for Squeezed Noise Inputs
John Gough, Dylon Rees
We derive the quantum filter for a quantum open system undergoing quadrature measurements (homodyning) where the input field is in a general quasi-free state. This extends previous…
quant-ph2026
The Universe as a Detector: A Quantum Filtering Formulation of the Diósi-Penrose Model
John Gough, Dylon Rees
We consider the Diósi-Penrose problem but rather than postulating background gravitational fluctuations, we instead consider the quantum filter that arises from space-time homodyn…