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
- Charge acceleration without radiationIt has always been assumed that whenever we accelerate an electron, it produces electromagnetic radiation, such as light or radio waves. This effect lies behind much of modern… Continue reading Charge acceleration without radiation
- Article in Physics WorldA paper by Yakir Aharonov, Sandu Popescu and I: “Angular Momentum Flows without anything carrying it“, recently appeared in Physics World, as part of an article Quantum Cheshire… Continue reading Article in Physics World
- Article in New ScientistResearch by Sandu Popescu and I (Conservation Laws For Every Quantum Measurement Outcome) was recently featured in New Scientist, as How a Quantum innovation may quash the idea… Continue reading Article in New Scientist
- UCL Quantum Information Theory TalkI gave a talk on Quantum Conservation Laws (and how to fix them) at UCL, in the Department for Computer Science. The slides are below.
- 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