Phononic loss in superconducting resonators on piezoelectric substrates

Abstract

We numerically and experimentally investigate the phononic loss for superconducting resonators fabricated on a piezoelectric substrate. With the help of finite element method simulations, we calculate the energy loss due to electromechanical conversion into bulk and surface acoustic waves. This sets an upper limit for the resonator internal quality factor $Q_i$. To validate the simulation, we fabricate quarter wavelength coplanar waveguide resonators on GaAs and measure $Q_i$ as function of frequency, power and temperature. We observe a linear increase of $Q_i$ with frequency, as predicted by the simulations for a constant electromechanical coupling. Additionally, $Q_i$ shows a weak power dependence and a negligible temperature dependence around 10mK, excluding two level systems and non-equilibrium quasiparticles as the main source of losses at that temperature.

References in corpus (25)

• Circuit Quantum Electrodynamics: Coherent Coupling of a Single Photon to a Cooper Pair Box
• Propagating phonons coupled to an artificial atom
• Planar Superconducting Resonators with Internal Quality Factors above One Million
• Quantum acoustics with superconducting qubits
• Quantum control of surface acoustic wave phonons
• Coplanar Waveguide Resonators for Circuit Quantum Electrodynamics
• Dipole coupling of a double quantum dot to a microwave resonator
• Circuit quantum acoustodynamics with surface acoustic waves
• 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
• Microwave Dielectric Loss at Single Photon Energies and milliKelvin Temperatures
• Nonexponential decay of a giant artificial atom
• Loss and decoherence due to stray infrared light in superconducting quantum circuits
• Study of loss in superconducting coplanar waveguide resonators
• Improving the Coherence Time of Superconducting Coplanar Resonators
• High Kinetic Inductance NbN Nanowire Superinductors
• Characterization and Reduction of Capacitive Loss Induced by Sub-Micron Josephson Junction Fabrication in Superconducting Qubits
• Circuit QED using a semiconductor double quantum dot
• Resolving Phonon Fock States in a Multimode Cavity with a Double-Slit Qubit
• Etch Induced Microwave Losses in Titanium Nitride Superconducting Resonators
• Wirebond crosstalk and cavity modes in large chip mounts for superconducting qubits
• Local probing of propagating acoustic waves in a gigahertz echo chamber
• Analysis of high quality superconducting resonators: consequences for TLS properties in amorphous oxides
• Coherent microwave photon mediated coupling between a semiconductor and a superconductor qubit
• Noise and loss of superconducting aluminium resonators at single photon energies

Cited by in corpus (17)

• Materials loss measurements using superconducting microwave resonators
• A perspective on hybrid quantum opto- and electromechanical systems
• Loss channels affecting lithium niobate phononic crystal resonators at cryogenic temperature
• Gate-Tunable Transmon Using Selective-Area-Grown Superconductor-Semiconductor Hybrid Structures on Silicon
• High-kinetic inductance NbN films for high-quality compact superconducting resonators
• Superconducting resonators with voltage-controlled frequency and nonlinearity
• Acoustic spectral hole-burning in a two-level system ensemble
• Quantum collective motion of macroscopic mechanical oscillators
• A quantum dot in germanium proximitized by a superconductor
• Cryogenic microwave loss in epitaxial Al/GaAs/Al trilayers for superconducting circuits
• Tunable Capacitor For Superconducting Qubits Using an InAs/InGaAs Heterostructure
• Thin film aluminum nitride surface acoustic wave resonators for quantum acoustodynamics
• Millikelvin measurements of permittivity and loss tangent of lithium niobate
• Performance of high impedance resonators in dirty dielectric environments
• Ternary Metal Oxide Substrates for Superconducting Circuits
• Effective quantum dynamics induced by a driven two-level-system bath
• Study of Magnetic Field Resilient High Impedance High-Kinetic Inductance Superconducting Resonators