I attended International Conference on Atomic Physics (ICAP 2022) in Toronto from July 17th to July 23rd and gave a poster presentation in University of Toronto. The abstract is given below:

Abstract:

Macroscopic mechanical devices in the quantum regime can play a key role in quantum communication, quantum sensing and fundamental tests of quantum mechanics. We use a fiber cavity filled with superfluid 4He of mass ~ 1 ng as our mechanical resonator. Leveraging single photon counting techniques, we manipulate and probe the motional state of a superfluid 4He resonator. The arrival times of Stokes and anti-Stokes photons are used to measure the resonator’s phonon coherences. We demonstrate the coherences of a thermal state near the motional ground state, a non-classical photon-phonon squeezed state, and a high amplitude coherent state in this superfluid 4He resonator. These measurements pave the avenue of realizing a non-classical state in a milligram resonator in future experiments.

The link to the Poster (May take some time to download)

Had lots of fun in the conference and in Toronto. Look forward to ICAP 2024 in London.