Quantum theory describes how our universe behaves at the smallest scales, where atoms and their constituent particles interact, and underpins almost all of modern physics. In this talk, I will give a brief introduction to this hidden quantum world, highlighting some crucial and surprising differences between it and our everyday experiences. One way to understand quantum behaviour is through the branching and merging of parallel worlds, in which microscopic particles undergo different evolutions. This raises the question of whether parallel worlds exist at a larger scale, in which different, equally real, copies of you live out their lives.

Presented by Dr Tony Short, School of Physics at the University of Bristol.