31 citations · 41 across the 5 of their papers we have counts for
5 papers
Fragility of Value under Imperfect Alignment
Winter Cross, Léo Cymbalista, Alfred Harwood +1
As more responsibility is placed upon AI systems, it becomes increasingly important to guarantee that these systems are aligned with humanity. A common fear in AI safety is that hu…
Calculating Mutual Information between a Reward Maximizer and its Environment
Alfred Harwood, Jose Faustino, Alex Altair
An important question in the field of AI is the extent to which successful behaviour requires an internal representation of the world. In this work, we quantify the amount of infor…
Unified Collision Model of Coherent and Measurement-based Quantum Feedback
Alfred Harwood, Matteo Brunelli, Alessio Serafini
We introduce a general framework, based on collision models and discrete CP-maps, to describe on an equal footing coherent and measurement-based feedback control of quantum mechani…
Cavity optomechanics assisted by optical coherent feedback
Alfred Harwood, Matteo Brunelli, Alessio Serafini
We consider a wide family of optical coherent feedback loops acting on an optomechanical system operating in the linearized regime. We assess the efficacy of such loops in improvin…
Ultimate squeezing through coherent quantum feedback: A fair comparison with measurement-based schemes
Alfred Harwood, Alessio Serafini
We develop a general framework to describe interferometric coherent feedback loops and prove that, under any such scheme, the steady-state squeezing of a bosonic mode subject to a…