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Title: Phonon-mediated quantum state transfer and remote qubit entanglement

Abstract

Phonons, and in particular surface acoustic wave phonons, have been proposed as a means to coherently couple distant solid-state quantum systems. Individual phonons in a resonant structure can be controlled and detected by superconducting qubits, enabling the coherent generation and measurement of complex stationary phonon states. We report the deterministic emission and capture of itinerant surface acoustic wave phonons, enabling the quantum entanglement of two superconducting qubits. Using a 2-millimeter-long acoustic quantum communication channel, equivalent to a 500-nanosecond delay line, we demonstrate the emission and recapture of a phonon by one superconducting qubit, quantum state transfer between two superconducting qubits with a 67% efficiency, and, by partial transfer of a phonon, generation of an entangled Bell pair with a fidelity of 84%.

Authors:
; ; ; ; ; ; ; ; ; ;
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); USDOE
OSTI Identifier:
1547478
Alternate Identifier(s):
OSTI ID: 1526261
Grant/Contract Number:  
AC02-06CH11357; FWP 50503
Resource Type:
Journal Article: Published Article
Journal Name:
Science
Additional Journal Information:
Journal Volume: 364; Journal Issue: 6438
Country of Publication:
United States
Language:
English

Citation Formats

Bienfait, Audrey, Satzinger, Kevin J., zhong, youpeng, Chang, Hung-shen, Chou, Ming-Han, Conner, Chris, Dumur, E., Grebel, Joel, Peairs, Gregory A., Povey, Rhys, and Cleland, A. N. Phonon-mediated quantum state transfer and remote qubit entanglement. United States: N. p., 2019. Web. doi:10.1126/science.aaw8415.
Bienfait, Audrey, Satzinger, Kevin J., zhong, youpeng, Chang, Hung-shen, Chou, Ming-Han, Conner, Chris, Dumur, E., Grebel, Joel, Peairs, Gregory A., Povey, Rhys, & Cleland, A. N. Phonon-mediated quantum state transfer and remote qubit entanglement. United States. doi:10.1126/science.aaw8415.
Bienfait, Audrey, Satzinger, Kevin J., zhong, youpeng, Chang, Hung-shen, Chou, Ming-Han, Conner, Chris, Dumur, E., Grebel, Joel, Peairs, Gregory A., Povey, Rhys, and Cleland, A. N. Fri . "Phonon-mediated quantum state transfer and remote qubit entanglement". United States. doi:10.1126/science.aaw8415.
@article{osti_1547478,
title = {Phonon-mediated quantum state transfer and remote qubit entanglement},
author = {Bienfait, Audrey and Satzinger, Kevin J. and zhong, youpeng and Chang, Hung-shen and Chou, Ming-Han and Conner, Chris and Dumur, E. and Grebel, Joel and Peairs, Gregory A. and Povey, Rhys and Cleland, A. N.},
abstractNote = {Phonons, and in particular surface acoustic wave phonons, have been proposed as a means to coherently couple distant solid-state quantum systems. Individual phonons in a resonant structure can be controlled and detected by superconducting qubits, enabling the coherent generation and measurement of complex stationary phonon states. We report the deterministic emission and capture of itinerant surface acoustic wave phonons, enabling the quantum entanglement of two superconducting qubits. Using a 2-millimeter-long acoustic quantum communication channel, equivalent to a 500-nanosecond delay line, we demonstrate the emission and recapture of a phonon by one superconducting qubit, quantum state transfer between two superconducting qubits with a 67% efficiency, and, by partial transfer of a phonon, generation of an entangled Bell pair with a fidelity of 84%.},
doi = {10.1126/science.aaw8415},
journal = {Science},
number = 6438,
volume = 364,
place = {United States},
year = {2019},
month = {4}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1126/science.aaw8415

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