Quartz-superconductor quantum electromechanical system

Abstract

We propose and analyse a quantum electromechanical system composed of a monolithic quartz bulk acoustic wave (BAW) oscillator coupled to a superconducting transmon qubit via an intermediate LC electrical circuit. Monolithic quartz oscillators offer unprecedentedly high effective masses and quality factors for the investigation of mechanical oscillators in the quantum regime. Ground-state cooling of such mechanical modes via resonant piezoelectric coupling to an LC circuit, which is itself sideband cooled via coupling to a transmon qubit, is shown to be feasible. The fluorescence spectrum of the qubit, containing motional sideband contributions due to the couplings to the oscillator modes, is obtained and the imprint of the electromechanical steady-state on the spectrum is determined. This allows the qubit to function both as a cooling resource for, and transducer of, the mechanical oscillator. The results described are relevant to any hybrid quantum system composed of a qubit coupled to two (coupled or uncoupled) thermal oscillator modes.

19 pages, 3 figures

References in corpus (17)

• Charge insensitive qubit design derived from the Cooper pair box
• Sideband Cooling Micromechanical Motion to the Quantum Ground State
• Quantum information processing with circuit quantum electrodynamics
• Quantum squeezing of motion in a mechanical resonator
• Squeezing of quantum noise of motion in a micromechanical resonator
• Dynamic strain-mediated coupling of a single diamond spin to a mechanical resonator
• Quantum nondemolition measurement of a nonclassical state of a massive object
• Two-mode squeezed states in cavity optomechanics via engineering of a single reservoir
• Cavity-Assisted Back Action Cooling of Mechanical Resonators
• Single-qubit lasing and cooling at the Rabi frequency
• Nanomechanical squeezing with detection via a microwave cavity
• Sisyphus cooling and amplification by a superconducting qubit
• Life after charge noise: recent results with transmon qubits
• First-order sidebands in circuit QED using qubit frequency modulation
• Observation and interpretation of motional sideband asymmetry in a quantum electro-mechanical device
• Quantum State Engineering with Circuit Electromechanical Three-Body Interactions
• Effects of Geometry on Near Quantum Ground State Behaviour of Phonon-Trapping Acoustic Cavities

Cited by in corpus (8)

• Bulk crystalline optomechanics
• Microwave-to-optical transduction using a mechanical supermode for coupling piezoelectric and optomechanical resonators
• Optomechanical measurement of a millimeter-sized mechanical oscillator near the quantum limit
• Higher-order interactions in quantum optomechanics: Analytical solution of nonlinearity
• A new method of probing mechanical losses of coatings at cryogenic temperatures
• Electrode configuration and electrical dissipation of mechanical energy in quartz crystal resonators
• Electro-Mechanical Tuning of High-Q Bulk Acoustic Phonon Modes at Cryogenic Temperatures
• High precision displacement sensing of monolithic piezoelectric disk resonators using a single-electron transistor