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Title: Unidirectional Distributed Acoustic Reflection Transducers for Quantum Applications

Abstract

Recent significant advances in coupling superconducting qubits to acoustic wave resonators have led to demonstrations of quantum control of surface and bulk acoustic resonant modes as well as Wigner tomography of quantum states in these modes. These advances were achieved through the efficient coupling afforded by piezoelectric materials combined with GHz-frequency acoustic Fabry-Perot cavities. Quantum control of itinerant surface acoustic waves appears in reach but is challenging due to the limitations of conventional transducers in the appropriate gigahertz-frequency band. In particular, gigahertz-frequency unidirectional transducers would provide an important addition to the desired quantum toolbox, promising unit efficiency with directional control over the surface acoustic wave emission pattern. Here, we report the design, fabrication, and experimental characterization of unidirectional distributed acoustic reflection transducers demonstrating a high transduction frequency of 4.8GHz with a peak directivity larger than 25dB and a directivity greater than 15dB over a bandwidth of 17MHz. A numerical model reproduces the main features of the transducer response quite well, with ten adjustable parameters (most of which are constrained by geometric and physical considerations). This represents a significant step toward quantum control of itinerant quantum acoustic waves.

Authors:
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Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
Argonne National Laboratory - Laboratory Directed Research and Development (LDRD); USDOE U.S. Department of Energy; Air Force Research Laboratory (AFRL) - Air Force Office of Scientific Research (AFOSR); U.S. Army Research Laboratory; National Science Foundation (NSF)
OSTI Identifier:
1530395
DOE Contract Number:  
AC02-06CH11357
Resource Type:
Journal Article
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 114; Journal Issue: 22
Country of Publication:
United States
Language:
English

Citation Formats

Dumur, E., Satzinger, Kevin J., Peairs, Gregory A., Chou, Ming-Han, Bienfait, Audrey, Chang, Hung-shen, Conner, Chris, Grebel, Joel, Povey, Rhys, zhong, youpeng, and Cleland, A. N. Unidirectional Distributed Acoustic Reflection Transducers for Quantum Applications. United States: N. p., 2019. Web. doi:10.1063/1.5099095.
Dumur, E., Satzinger, Kevin J., Peairs, Gregory A., Chou, Ming-Han, Bienfait, Audrey, Chang, Hung-shen, Conner, Chris, Grebel, Joel, Povey, Rhys, zhong, youpeng, & Cleland, A. N. Unidirectional Distributed Acoustic Reflection Transducers for Quantum Applications. United States. doi:10.1063/1.5099095.
Dumur, E., Satzinger, Kevin J., Peairs, Gregory A., Chou, Ming-Han, Bienfait, Audrey, Chang, Hung-shen, Conner, Chris, Grebel, Joel, Povey, Rhys, zhong, youpeng, and Cleland, A. N. Mon . "Unidirectional Distributed Acoustic Reflection Transducers for Quantum Applications". United States. doi:10.1063/1.5099095.
@article{osti_1530395,
title = {Unidirectional Distributed Acoustic Reflection Transducers for Quantum Applications},
author = {Dumur, E. and Satzinger, Kevin J. and Peairs, Gregory A. and Chou, Ming-Han and Bienfait, Audrey and Chang, Hung-shen and Conner, Chris and Grebel, Joel and Povey, Rhys and zhong, youpeng and Cleland, A. N.},
abstractNote = {Recent significant advances in coupling superconducting qubits to acoustic wave resonators have led to demonstrations of quantum control of surface and bulk acoustic resonant modes as well as Wigner tomography of quantum states in these modes. These advances were achieved through the efficient coupling afforded by piezoelectric materials combined with GHz-frequency acoustic Fabry-Perot cavities. Quantum control of itinerant surface acoustic waves appears in reach but is challenging due to the limitations of conventional transducers in the appropriate gigahertz-frequency band. In particular, gigahertz-frequency unidirectional transducers would provide an important addition to the desired quantum toolbox, promising unit efficiency with directional control over the surface acoustic wave emission pattern. Here, we report the design, fabrication, and experimental characterization of unidirectional distributed acoustic reflection transducers demonstrating a high transduction frequency of 4.8GHz with a peak directivity larger than 25dB and a directivity greater than 15dB over a bandwidth of 17MHz. A numerical model reproduces the main features of the transducer response quite well, with ten adjustable parameters (most of which are constrained by geometric and physical considerations). This represents a significant step toward quantum control of itinerant quantum acoustic waves.},
doi = {10.1063/1.5099095},
journal = {Applied Physics Letters},
number = 22,
volume = 114,
place = {United States},
year = {2019},
month = {6}
}