Surface acoustic wave resonators on thin film piezoelectric substrates in the quantum regime
arXiv:2301.11213 · doi:10.1088/2633-4356/acc9f6
Abstract
Lithium niobate (LNO) is a well established material for surface acoustic wave (SAW) devices including resonators, delay lines and filters. Recently, multi-layer substrates based on LNO thin films have become commercially available. Here, we present a systematic low-temperature study of the performance of SAW devices fabricated on LNO-on-insulator and LNO-on-Silicon substrates and compare them to bulk LNO devices. Our study aims at assessing the performance of these substrates for quantum acoustics, i.e. the integration with superconducting circuits operating in the quantum regime. To this end, we design SAW resonators with a target frequency of 5 GHz and perform experiments at millikelvin temperatures and microwave power levels corresponding to single photons or phonons. The devices are investigated regarding their internal quality factors as a function of the excitation power and temperature, which allows us to characterize and quantify losses and identify the dominating loss mechanism. For the measured devices, fitting the experimental data shows that the quality factors are limited by the coupling of the resonator to a bath of two-level-systems. Our results suggest that SAW devices on thin film LNO on silicon have comparable performance to devices on bulk LNO and are viable for use in SAW-based quantum acoustic devices.
arXiv comment13 pages, 4 figures
References in corpus (24)
- Nanophotonic Lithium Niobate Electro-optic Modulators
- Electro-optically tunable microring resonators in lithium niobate
- Quantum acoustics with superconducting qubits
- Quantum control of surface acoustic wave phonons
- Coherent coupling between radio frequency, optical, and acoustic waves in piezo-optomechanical circuits
- Circuit quantum acoustodynamics with surface acoustic waves
- Phonon-mediated quantum state transfer and remote qubit entanglement
- Creation and control of multi-phonon Fock states in a bulk acoustic wave resonator
- Efficient and robust analysis of complex scattering data under noise in microwave resonators
- Efficient bidirectional piezo-optomechanical transduction between microwave and optical frequency
- An analysis method for asymmetric resonator transmission applied to superconducting devices
- Designing frequency-dependent relaxation rates and Lamb shift for a giant artificial atom
- Nonexponential decay of a giant artificial atom
- Materials loss measurements using superconducting microwave resonators
- Sub-optical wavelength acoustic wave modulation of integrated photonic resonators at microwave frequencies
- Resolving the energy levels of a nanomechanical oscillator
- Oscillating bound states for a giant atom
- Hardware-efficient quantum random access memory with hybrid quantum acoustic systems
- Cavity quantum acoustic device in the multimode strong coupling regime
- Bidirectional electro-optic conversion reaching 1% efficiency with thin-film lithium niobate
- Lithium Niobate Piezo-optomechanical Crystals
- Loss mechanisms in superconducting thin film microwave resonators
- Surface acoustic wave unidirectional transducers for quantum applications
- Quantum Acoustics with Surface Acoustic Waves
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