The Cheshire Cat from Alice’s Adventures in Wonderland can disappear leaving only its smile – particles might be able to do something similar Shutterstock/Larissa Kulik
A new version of a strange experiment in which a particle’s properties are separated from its body or mass, called the quantum Cheshire Cat, has physicists arguing over whether these disembodied properties are quite what they seem and how reality works in the quantum world.
In 2014, physicists experimentally demonstrated this strange effect – compared…
