Articles in New Scientist, Scientific American & Spektrum.de

Our 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. Then it was featured in Spectrum.de, in New quantum paradox triggers controversy (in German). This was translated into English, appearing in Scientific American as A new Quantum Cheshire Cat thought experiment is out of the box.

Angular Momentum Flows without anything carrying it

Yakir 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 a region of space which is empty except for a vanishingly small probability of containing a particle. Remarkably, this probability, which can be made as small as we like, allows the angular momentum to flow, apparently without any carrier. This is an advance in the interaction free research field, which began with Elitzur and Vaidman’s interaction free measurement.