Experimental quantum teleportation of propagating microwaves

Kirill G. Fedorov; Michael Renger; Stefan Pogorzalek; Roberto Di Candia; Qiming Chen; Yuki Nojiri; Kunihiro Inomata; Yasunobu Nakamura; Matti Partanen; Achim Marx; Rudolf Gross; Frank Deppe

doi:10.1126/sciadv.abk0891

Experimental quantum teleportation of propagating microwaves

Kirill G. Fedorov^*, Michael Renger, Stefan Pogorzalek, Roberto Di Candia, Qiming Chen, Yuki Nojiri, Kunihiro Inomata, Yasunobu Nakamura, Matti Partanen, Achim Marx, Rudolf Gross, Frank Deppe

^*Corresponding author for this work

Research output: Contribution to journal › Article › Scientific › peer-review

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Abstract

The field of quantum communication promises to provide efficient and unconditionally secure ways to exchange information, particularly, in the form of quantum states. Meanwhile, recent breakthroughs in quantum computation with superconducting circuits trigger a demand for quantum communication channels between spatially separated superconducting processors operating at microwave frequencies. In pursuit of this goal, we demonstrate the unconditional quantum teleportation of propagating coherent microwave states by exploiting two-mode squeezing and analog feedforward over a macroscopic distance of d = 0.42 m. We achieve a teleportation fidelity of F = 0.689 ± 0.004, exceeding the asymptotic no-cloning threshold. Thus, the quantum nature of the teleported states is preserved, opening the avenue toward unconditional security in microwave quantum communication.

Original language	English
Article number	0891
Number of pages	7
Journal	Science Advances
Volume	7
Issue number	52
DOIs	https://doi.org/10.1126/sciadv.abk0891
Publication status	Published - Dec 2021
MoE publication type	A1 Journal article-refereed

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10.1126/sciadv.abk0891Licence: CC BY

ELEC_Fedorov_etal_Experimental_quantum_teleportation_Science_Advances_2021Final published version, 2.08 MBLicence: CC BY

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@article{8c581e3753ea4abba0e90b14d9c96645,

title = "Experimental quantum teleportation of propagating microwaves",

abstract = "The field of quantum communication promises to provide efficient and unconditionally secure ways to exchange information, particularly, in the form of quantum states. Meanwhile, recent breakthroughs in quantum computation with superconducting circuits trigger a demand for quantum communication channels between spatially separated superconducting processors operating at microwave frequencies. In pursuit of this goal, we demonstrate the unconditional quantum teleportation of propagating coherent microwave states by exploiting two-mode squeezing and analog feedforward over a macroscopic distance of d = 0.42 m. We achieve a teleportation fidelity of F = 0.689 ± 0.004, exceeding the asymptotic no-cloning threshold. Thus, the quantum nature of the teleported states is preserved, opening the avenue toward unconditional security in microwave quantum communication. ",

author = "Fedorov, {Kirill G.} and Michael Renger and Stefan Pogorzalek and {Di Candia}, Roberto and Qiming Chen and Yuki Nojiri and Kunihiro Inomata and Yasunobu Nakamura and Matti Partanen and Achim Marx and Rudolf Gross and Frank Deppe",

note = "Funding Information: We acknowledge the support by the German Research Foundation via Germany's Excellence Strategy (EXC-2111-390814868), Elite Network of Bavaria through the program ExQM, EU Flagship project QMiCS (grant no. 820505), the Marie Sklodowska Curie fellowship (number 891517; MSC-IF Green-MIQUEC), JST ERATO (grant no. JPMJER1601), and the German Federal Ministry of Education and Research via the project QUARATE (grant no. 13 N15380). Publisher Copyright: Copyright {\textcopyright} 2021 The Authors, some rights reserved. | openaire: EC/H2020/820505/EU//QMiCS",

year = "2021",

month = dec,

doi = "10.1126/sciadv.abk0891",

language = "English",

volume = "7",

journal = "Science Advances",

issn = "2375-2548",

publisher = "American Association for the Advancement of Science",

number = "52",

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T1 - Experimental quantum teleportation of propagating microwaves

AU - Fedorov, Kirill G.

AU - Renger, Michael

AU - Pogorzalek, Stefan

AU - Di Candia, Roberto

AU - Chen, Qiming

AU - Nojiri, Yuki

AU - Inomata, Kunihiro

AU - Nakamura, Yasunobu

AU - Partanen, Matti

AU - Marx, Achim

AU - Gross, Rudolf

AU - Deppe, Frank

N1 - Funding Information: We acknowledge the support by the German Research Foundation via Germany's Excellence Strategy (EXC-2111-390814868), Elite Network of Bavaria through the program ExQM, EU Flagship project QMiCS (grant no. 820505), the Marie Sklodowska Curie fellowship (number 891517; MSC-IF Green-MIQUEC), JST ERATO (grant no. JPMJER1601), and the German Federal Ministry of Education and Research via the project QUARATE (grant no. 13 N15380). Publisher Copyright: Copyright © 2021 The Authors, some rights reserved. | openaire: EC/H2020/820505/EU//QMiCS

PY - 2021/12

Y1 - 2021/12

N2 - The field of quantum communication promises to provide efficient and unconditionally secure ways to exchange information, particularly, in the form of quantum states. Meanwhile, recent breakthroughs in quantum computation with superconducting circuits trigger a demand for quantum communication channels between spatially separated superconducting processors operating at microwave frequencies. In pursuit of this goal, we demonstrate the unconditional quantum teleportation of propagating coherent microwave states by exploiting two-mode squeezing and analog feedforward over a macroscopic distance of d = 0.42 m. We achieve a teleportation fidelity of F = 0.689 ± 0.004, exceeding the asymptotic no-cloning threshold. Thus, the quantum nature of the teleported states is preserved, opening the avenue toward unconditional security in microwave quantum communication.

AB - The field of quantum communication promises to provide efficient and unconditionally secure ways to exchange information, particularly, in the form of quantum states. Meanwhile, recent breakthroughs in quantum computation with superconducting circuits trigger a demand for quantum communication channels between spatially separated superconducting processors operating at microwave frequencies. In pursuit of this goal, we demonstrate the unconditional quantum teleportation of propagating coherent microwave states by exploiting two-mode squeezing and analog feedforward over a macroscopic distance of d = 0.42 m. We achieve a teleportation fidelity of F = 0.689 ± 0.004, exceeding the asymptotic no-cloning threshold. Thus, the quantum nature of the teleported states is preserved, opening the avenue toward unconditional security in microwave quantum communication.

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VL - 7

JO - Science Advances

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Experimental quantum teleportation of propagating microwaves

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Green-MIQUEC: Low-powered microwave quantum-enhanced communication: conceptualisation and preliminary design

QMiCS: Quantum Microwave Communication and Sensing

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Experimental quantum teleportation of propagating microwaves

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Projects

Green-MIQUEC: Low-powered microwave quantum-enhanced communication: conceptualisation and preliminary design

QMiCS: Quantum Microwave Communication and Sensing

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