Coherent phonon dynamics in spatially separated graphene mechanical resonators.

ABSTRACT: Vibrational modes in mechanical resonators provide a promising candidate to interface and manipulate classical and quantum information. The observation of coherent dynamics between distant mechanical resonators can be a key step toward scalable phonon-based applications. Here we report tunable coherent phonon dynamics with an architecture comprising three graphene mechanical resonators coupled in series, where all resonators can be manipulated by electrical signals on control gates. We demonstrate coherent Rabi oscillations between spatially separated resonators indirectly coupled via an intermediate resonator serving as a phonon cavity. The Rabi frequency fits well with the microwave burst power on the control gate. We also observe Ramsey interference, where the oscillation frequency corr

SUBMITTER: Zhang ZZ 

PROVIDER: S-EPMC7084087 | biostudies-literature | 2020 Mar

REPOSITORIES: biostudies-literature