Imagine a system that has two possible outcomes when it is measured. For example, a coin spinning on a table. If we stop it, it must be either heads or tails, but up until that moment, you can think of is as being both heads and tails at the same time. In quantum physics this combined state is called 'superposition'. Quantum systems in superposition only ‘collapse’ into one particular state when they are measured.

The images below show a series of experiments in which two static images are spun at high speed to combine into a new superposition. This work is part of an ongoing project funded by the Scottish Funding Council through the Quantum Technologies Alliance for Research Challenge.