A superfluid phonon-photon interconnect

Superfluid quantum information Superfluid helium is one of the most exotic forms of quantum matter and, analogous to superconductors, it can display discrete dissipation-free excitations, as desired for quantum memories and quantum computers. Superfluid helium is also the ultimate optomechanical system, enabling light-matter interactions at the single quanta level, as needed for future quantum networks and for realizing remote entanglement. We will combine integrated photonics with embedded superfluid nano-channels to control the interaction between light and acoustic Helium waves to the level of individual photons and phonon, opening up a wealth of new quantum technologies.