[Spark]

Optical Quantum Memory
To store a quantum state of light, you have to somehow catch it and release it, but never measure it. This is because any measurement will disturb the quantum state, thus making the memory noisy. We do experiments that aim to perfect a quantum memory that works by absorbing pulses of light in an atomic gas. At some controllable time later, we can un-absorb the light to release the stored quantum state. The are numerous projects available working on both hot and cold atomic gases, generating entangled quantum states of light, as well as theoretical modelling of the system.

Looks like fun.