Thin film aluminum nitride surface acoustic wave resonators for quantum acoustodynamics

• URL: http://arxiv.org/abs/2304.00511v2
• Date: Tue, 4 Apr 2023 10:39:35 GMT
• Title: Thin film aluminum nitride surface acoustic wave resonators for quantum acoustodynamics
• Authors: Wenbing Jiang, Junfeng Chen, Xiaoyu Liu, Zhengqi Niu, Kuang Liu, Wei Peng, Zhen Wang, Zhi-Rong Lin
• Abstract summary: We present the potentials of thin film aluminum nitride to on-chip integrate phonons with superconducting qubits over previous bulk piezoelectric substrates. We have reported high-quality thin film GHz-SAW resonators with the highest internal quality factor Qi of 5 e4 at the single-phonon level.
• Score: 14.431420668034457
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: The quantum excitations of macroscopic surface acoustic waves (SAWs) have been tailored to control, communicate and transduce stationary and flying quantum states. However, the limited lifetime of this hybrid quantum systems remains critical obstacles to extend their applications in quantum information processing. Here we present the potentials of thin film aluminum nitride to on-chip integrate phonons with superconducting qubits over previous bulk piezoelectric substrates. We have reported high-quality thin film GHz-SAW resonators with the highest internal quality factor Qi of 5 e4 at the single-phonon level. The internal loss of SAW resonators are systematically investigated with tuning the parameters of sample layout, power and temperature. Our results manifest that SAWs on piezoelectric films are readily integrable with standard fabrication of Josephson junction quantum circuits, and offer excellent acoustic platforms for the high-coherence quantum acoustodynamics architectures.

Related papers

• High-Coherence Quantum Acoustics with Planar Superconducting Qubits [0.0]
  High-overtone bulk acoustic resonators (HBARs) represent an attractive mechanical implementation of quantum acoustics. We demonstrate an implementation of high-coherence HBAR quantum acoustics integrated with a planar superconducting qubit architecture.
  arXiv  Detail & Related papers  (2024-10-14T08:22:18Z)
• Thin-film quartz for high-coherence piezoelectric phononic crystal resonators [0.0]
  Piezoelectric phononic crystal resonators (PCRs) are a promising platform for acoustic quantum processing. We fabricate PCRs from a new substrate: thin-film quartz. We characterize the loss channels in these devices and find that, although improved, the low-power response is still limited by coupling to a TLS bath.
  arXiv  Detail & Related papers  (2024-06-20T18:27:10Z)
• Site-Controlled Purcell-Induced Bright Single Photon Emitters in Hexagonal Boron Nitride [62.170141783047974]
  Single photon emitters hosted in hexagonal boron nitride (hBN) are essential building blocks for quantum photonic technologies that operate at room temperature. We experimentally demonstrate large-area arrays of plasmonic nanoresonators for Purcell-induced site-controlled SPEs. Our results offer arrays of bright, heterogeneously integrated quantum light sources, paving the way for robust and scalable quantum information systems.
  arXiv  Detail & Related papers  (2024-05-03T23:02:30Z)
• Quantum acoustic Fano interference of surface phonons [0.0]
  We present measurements revealing Fano interference of a resonantly trapped piezoelectric surface acoustic wave (SAW) mode with a broad continuum of surface phonons in a system consisting of a SAW resonator coupled to a superconducting qubit. The experiments highlight the existence of additional weakly coupled mechanical modes and their influence on the qubit-phonon interaction and underscore the importance of phononic interference in quantum acoustic architectures that have been proposed for quantum information processing applications.
  arXiv  Detail & Related papers  (2023-02-02T17:58:44Z)
• Ultra-High Q Nanomechanical Resonators for Force Sensing [91.3755431537592]
  I propose that such resonators will allow the detection of electron and nuclear spins with high spatial resolution. The article lists the challenges that must be overcome before this vision can become reality, and indicates potential solutions.
  arXiv  Detail & Related papers  (2022-09-12T12:21:00Z)
• Large Single-Phonon Optomechanical Coupling between Quantum Dots and Tightly Confined Surface Acoustic Waves in the Quantum Regime [1.7039969990048311]
  Small acoustic cavities with large zero-point motion are required for high efficiencies. We experimentally establish the feasibility of this platform through electro- and opto-mechanical characterization. We show conversion between microwave phonons and optical photons with sub-natural linewidths.
  arXiv  Detail & Related papers  (2022-05-03T02:53:01Z)
• Experimentally revealing anomalously large dipoles in a quantum-circuit dielectric [50.591267188664666]
  Two-level systems (TLSs) intrinsic to glasses induce decoherence in many modern quantum devices. We show the existence of two distinct ensembles of TLSs, interacting weakly and strongly with phonons. Results may shed new light on the low temperature characteristics of amorphous solids.
  arXiv  Detail & Related papers  (2021-10-20T19:42:22Z)
• Phonon dephasing and spectral diffusion of quantum emitters in hexagonal Boron Nitride [52.915502553459724]
  Quantum emitters in hexagonal boron nitride (hBN) are emerging as bright and robust sources of single photons for applications in quantum optics. We study phonon dephasing and spectral diffusion of quantum emitters in hBN via resonant excitation spectroscopy at cryogenic temperatures.
  arXiv  Detail & Related papers  (2021-05-25T05:56:18Z)
• Measurements of a quantum bulk acoustic resonator using a superconducting qubit [0.0]
  Phonons hold promise for quantum-focused applications as diverse as sensing, information processing, and communication. We describe a piezoelectric quantum bulk acoustic resonator (QBAR) with a 4.88 GHz resonant frequency. We couple this QBAR resonator to a superconducting qubit on a separate die and demonstrate quantum control of the mechanics in the coupled system.
  arXiv  Detail & Related papers  (2020-12-08T17:36:33Z)
• Quantum Sensors for Microscopic Tunneling Systems [58.720142291102135]
  tunneling Two-Level-Systems (TLS) are important for micro-fabricated quantum devices such as superconducting qubits. We present a method to characterize individual TLS in virtually arbitrary materials deposited as thin-films. Our approach opens avenues for quantum material spectroscopy to investigate the structure of tunneling defects.
  arXiv  Detail & Related papers  (2020-11-29T09:57:50Z)
• Entanglement generation via power-of-SWAP operations between dynamic electron-spin qubits [62.997667081978825]
  Surface acoustic waves (SAWs) can create moving quantum dots in piezoelectric materials. We show how electron-spin qubits located on dynamic quantum dots can be entangled.
  arXiv  Detail & Related papers  (2020-01-15T19:00:01Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.