I’m a research scientist in theoretical physics at the University of Bristol. I have a long standing passion for science and technology, and in particular for the foundations of quantum mechanics. I enjoy searching for insights into the way it works, and for phenomena which appear counterintuitive at first glance. I believe that the world operates locally, but quantum mechanics has various phenomena which are non-local when described in our usual (classical) language, such as violations of Bell inequalities, counterfactual communication, and the Aharonov-Bohm effect. I study these and related effects, principally using thought experiments to demonstrate specific tasks which can be performed. I’m interested in non-locality, entanglement, quantum conservation laws, quantum retrodiction, quantum information, quantum computation: anything novel with a quantum component!

Recent Posts

- Articles in New Scientist, Scientific American & Spektrum.deOur paper, “Angular Momentum Flows without anything carrying it”, was recently featured in New Scientist, in New spin on quantum theory forces rethink of a fundamental physics law.… Continue reading Articles in New Scientist, Scientific American & Spektrum.de
- Teleportation across a Quantum Computer ChipOnce upon a time, it required state of the art quantum optics to perform a teleportation experiment. Now we can do it with a regular quantum computer. Here… Continue reading Teleportation across a Quantum Computer Chip
- Conservation Laws For Every Quantum Measurement OutcomeIn Quantum Mechanics, a cylinder can simultaneously rotate clockwise and anti-clockwise at the same time. This phenomenon, called superposition, is crucial for paradoxes like Schrödinger’s cat, and applications… Continue reading Conservation Laws For Every Quantum Measurement Outcome
- Angular Momentum Flows without anything carrying itYakir Aharonov, Sandu Popescu and I have written a new paper where we show how Angular Momentum, a conserved quantity, can travel from one place to another across… Continue reading Angular Momentum Flows without anything carrying it
- Foundations 2023 Conference TalkI gave a talk on Teleportation of Post-Selected States (and how do I know an entangled state is what I think it is) at the Foundations of Physics… Continue reading Foundations 2023 Conference Talk
- Teleportation of Post-Selected StatesI’ve written a new paper showing how to teleport a state which is post-selected. This combines three of my favourite topics: teleportation, post-selection, and the reality of an… Continue reading Teleportation of Post-Selected States