Superconducting cavity piezo-electromechanics: the realization of an acoustic frequency comb at microwave frequencies

Abstract

We present a nonlinear multimode superconducting electroacoustic system, where the interplay between superconducting kinetic inductance and piezoelectric strong coupling establishes an effective Kerr nonlinearity among multiple acoustic modes at 10 GHz that could hardly be achieved via intrinsic mechanical nonlinearity. By exciting this multimode Kerr system with a single microwave tone, we further demonstrate a coherent electroacoustic frequency comb and provide theoretical understanding of multimode nonlinear interaction in the superstrong coupling limit. This nonlinear superconducting electroacoustic system sheds light on the active control of multimode resonator systems and offers an enabling platform for the dynamic study of microcombs at microwave frequencies.

References in corpus (5)

• Microresonator Soliton Dual-Comb Spectroscopy
• Circuit cavity electromechanics in the strong coupling regime
• Coherent optical wavelength conversion via cavity-optomechanics
• Hyperfine phononic frequency comb
• Ultra-Broadband Microwave Frequency-Comb Generation in Superconducting Resonators

Cited by in corpus (8)

• Mechanical overtone frequency combs
• Integrated and DC-powered superconducting microcomb
• Chiral phonons and phononic birefringence in ferromagnetic metal - bulk acoustic resonator hybrids
• Quantum Kerr Learning
• Optimal quantum sensing of the nonlinear bosonic interactions using Fock states
• Theory of polarization-dependent phonon pumping in ferromagnetic/non-magnetic bilayers
• Frequency comb in a macroscopic mechano-magnetic artificial spin ice
• Coherent microwave comb generation via the Josephson effect