WIDG Seminar: Yogesh Patil, Yale, “Quantum Optomechanics with Superfluid Helium”

Event time: 
Tuesday, September 10, 2019 - 12:00pm to 1:00pm
Wright Lab (WNSL), 216 See map
272 Whitney Avenue
New Haven, CT 06511
Event description: 

Superfluid Helium has in recent years been demonstrated to be a very good platform to realize quantum optomechanics owing to its extremely low losses, both optical (it combines a 19eV bandgap with a near total absence of chemical or structural defects) and mechanical (it has zero viscosity. Moreover, it offers access to the qualitatively novel and unexplored regime of fluid quantum optomechanics. Building on our previous work with super fluid-Helium filled fiber cavities, which couple an acoustic mode of the Helium to an optical mode of the cavity, we report here the first results on photon-phonon counting in such a device using a scheme modified and adapted from R. Riedinger et. al., Nature 530, 313 (2016). We further report progress toward the conditional preparation and detection of a non-Gaussian single-phonon Fock state of this superfluid resonator.