A single-qubit position verification protocol that is secure against multi-qubit attacks

Research output: Contribution to journal › Journal article › Research › peer-review

Standard

A single-qubit position verification protocol that is secure against multi-qubit attacks. / Bluhm, Andreas; Christandl, Matthias; Speelman, Florian.

In: Nature Physics, Vol. 18, 2022, p. 623–626.

Research output: Contribution to journal › Journal article › Research › peer-review

Harvard

Bluhm, A, Christandl, M & Speelman, F 2022, 'A single-qubit position verification protocol that is secure against multi-qubit attacks', Nature Physics, vol. 18, pp. 623–626. https://doi.org/10.1038/s41567-022-01577-0

APA

Bluhm, A., Christandl, M., & Speelman, F. (2022). A single-qubit position verification protocol that is secure against multi-qubit attacks. Nature Physics, 18, 623–626. https://doi.org/10.1038/s41567-022-01577-0

Vancouver

Bluhm A, Christandl M, Speelman F. A single-qubit position verification protocol that is secure against multi-qubit attacks. Nature Physics. 2022;18:623–626. https://doi.org/10.1038/s41567-022-01577-0

Author

Bluhm, Andreas ; Christandl, Matthias ; Speelman, Florian. / A single-qubit position verification protocol that is secure against multi-qubit attacks. In: Nature Physics. 2022 ; Vol. 18. pp. 623–626.

Bibtex

@article{66cfdb5f14d145e0bcb6aeb3b21d5b19,
title = "A single-qubit position verification protocol that is secure against multi-qubit attacks",
abstract = "The position of a device or agent is an important security credential in today{\textquoteright}s society, both online and in the real world. Unless in direct proximity, however, the secure verification of a position is impossible without further assumptions. This is true classically1, but also in any future quantum-equipped communications infrastructure2. We show in this work that minimal quantum resources, in the form of a single qubit, combined with classical communication are sufficient to thwart quantum adversaries that pretend to be at a specific position and have the ability to coordinate their action with entanglement. More precisely, we show that adversaries using an increasing amount of entanglement can be combatted solely by increasing the number of classical bits used in the protocol. The presented protocols are noise-robust and within reach of current quantum technology.",
author = "Andreas Bluhm and Matthias Christandl and Florian Speelman",
year = "2022",
doi = "10.1038/s41567-022-01577-0",
language = "English",
volume = "18",
pages = "623–626",
journal = "Nature Physics",
issn = "1745-2473",
publisher = "nature publishing group",

}

RIS

TY - JOUR

T1 - A single-qubit position verification protocol that is secure against multi-qubit attacks

AU - Bluhm, Andreas

AU - Christandl, Matthias

AU - Speelman, Florian

PY - 2022

Y1 - 2022

N2 - The position of a device or agent is an important security credential in today’s society, both online and in the real world. Unless in direct proximity, however, the secure verification of a position is impossible without further assumptions. This is true classically1, but also in any future quantum-equipped communications infrastructure2. We show in this work that minimal quantum resources, in the form of a single qubit, combined with classical communication are sufficient to thwart quantum adversaries that pretend to be at a specific position and have the ability to coordinate their action with entanglement. More precisely, we show that adversaries using an increasing amount of entanglement can be combatted solely by increasing the number of classical bits used in the protocol. The presented protocols are noise-robust and within reach of current quantum technology.

AB - The position of a device or agent is an important security credential in today’s society, both online and in the real world. Unless in direct proximity, however, the secure verification of a position is impossible without further assumptions. This is true classically1, but also in any future quantum-equipped communications infrastructure2. We show in this work that minimal quantum resources, in the form of a single qubit, combined with classical communication are sufficient to thwart quantum adversaries that pretend to be at a specific position and have the ability to coordinate their action with entanglement. More precisely, we show that adversaries using an increasing amount of entanglement can be combatted solely by increasing the number of classical bits used in the protocol. The presented protocols are noise-robust and within reach of current quantum technology.

U2 - 10.1038/s41567-022-01577-0

DO - 10.1038/s41567-022-01577-0

M3 - Journal article

VL - 18

SP - 623

EP - 626

JO - Nature Physics

JF - Nature Physics

SN - 1745-2473

ER -

ID: 304511140