Acoustic spectral hole-burning in a two-level system ensemble

Abstract

Microscopic two-level system (TLS) defects at dielectric surfaces and interfaces are among the dominant sources of loss in superconducting quantum circuits, and their properties have been extensively probed using superconducting resonators and qubits. We report on spectroscopy of TLSs coupling to the strain field in a surface acoustic wave (SAW) resonator. The narrow free spectral range of the resonator allows for two-tone spectroscopy where a strong pump is applied at one resonance while a weak signal is used to probe a different mode. We map the spectral hole burnt by the pump tone as a function of frequency and extract parameters of the TLS ensemble. Our results suggest that detuned acoustic pumping can be used to enhance the coherence of superconducting devices by saturating TLSs.

References in corpus (24)

• Decoherence in Josephson Qubits from Dielectric Loss
• 1/f noise: implications for solid-state quantum information
• Propagating phonons coupled to an artificial atom
• Towards understanding two-level-systems in amorphous solids -- Insights from quantum circuits
• Quantum control of surface acoustic wave phonons
• Experimental evidence for a surface distribution of two-level systems in superconducting lithographed microwave resonators
• Fluctuations of Energy-Relaxation Times in Superconducting Qubits
• Decoherence benchmarking of superconducting qubits
• Correlating decoherence in transmon qubits: Low frequency noise by single fluctuators
• Study of loss in superconducting coplanar waveguide resonators
• Observation of directly interacting coherent two-level systems in a solid
• Evidence for interacting two-level systems from the 1/f noise of a superconducting resonator
• Cavity quantum acoustic device in the multimode strong coupling regime
• Electric field spectroscopy of material defects in transmon qubits
• Surface acoustic wave resonators in the quantum regime
• Lifetime and Coherence of Two-Level Defects in a Josephson Junction
• Generalized Tunneling Model for TLS in amorphous materials and its predictions for their dephasing and the noise in superconducting microresonators
• Suppression of 1/f noise in solid state quantum devices by surface spin desorption
• Internal loss of superconducting resonators induced by interacting two level systems
• Phononic loss in superconducting resonators on piezoelectric substrates
• Revealing the nonlinear response of a tunneling two-level system ensemble using coupled modes
• Interaction of two level systems in amorphous materials with arbitrary phonon fields
• Probing a two-level system bath via the frequency shift of an off-resonantly-driven cavity
• Dynamical Decoupling of Quantum Two-Level Systems by Coherent Multiple Landau-Zener Transitions

Cited by in corpus (18)

• Two-level system hyperpolarization using a quantum Szilard engine
• Squeezing and multimode entanglement of surface acoustic wave phonons
• Towards a quantum interface between spin waves and paramagnetic spin baths
• Identification of different types of high-frequency defects in superconducting qubits
• Stabilizing and improving qubit coherence by engineering noise spectrum of two-level systems
• Low loss hybrid Nb/Au superconducting resonators for quantum circuit applications
• Argon milling induced decoherence mechanisms in superconducting quantum circuits
• Fermion-Parity-Based Computation and its Majorana-Zero-Mode Implementation
• Thin film aluminum nitride surface acoustic wave resonators for quantum acoustodynamics
• Decoherence of surface phonons in a quantum acoustic system
• Correlated frequency noise in a multimode acoustic resonator
• Quantum defects from single surface exhibit strong mutual interactions
• Effective quantum dynamics induced by a driven two-level-system bath
• Exploring van der Waals cuprate superconductors using a hybrid microwave circuit
• Study of Magnetic Field Resilient High Impedance High-Kinetic Inductance Superconducting Resonators
• High Impedance Granular Aluminum Ring Resonators
• Time-resolved spectral diffusion of a multimode mechanical memory
• Spectroscopy and Coherent Control of Two-Level System Defect Ensembles Using a Broadband 3D Waveguide