Nonlocal Temporal Interferometry for Highly Resilient
Free-Space Quantum Communication

J 2023

Nonlocal Temporal Interferometry for Highly Resilient Free-Space Quantum Communication

BULLA, Lukas, Matej PIVOLUSKA, Kristian HJORTH, Oskar KOHOUT, Jan LANG et. al.

Basic information

Original name

Nonlocal Temporal Interferometry for Highly Resilient Free-Space Quantum Communication

Authors

BULLA, Lukas, Matej PIVOLUSKA (703 Slovakia, guarantor, belonging to the institution), Kristian HJORTH, Oskar KOHOUT, Jan LANG, Sebastian ECKER, Sebastian P NEUMANN, Julius BITTERMANN, Robert KINDLER, Marcus HUBER, Martin BOHMANN and Rupert URSIN

Edition

Physical Review X, College Park, American Physical Society, 2023, 2160-3308

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10306 Optics

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

URL

Impact factor

Impact factor: 12.500 in 2022

RIV identification code

RIV/00216224:14610/23:00131028

Organization unit

Institute of Computer Science

DOI

http://dx.doi.org/10.1103/PhysRevX.13.021001

UT WoS

000996219700001

Keywords (in Czech)

Distribuce klíče; Entanglement; Laser

Keywords in English

KEY DISTRIBUTION;ENTANGLEMENT;LASER

Abstract

V originále

Entanglement distribution via photons over long distances enables many applications, including quantum key distribution, which provides unprecedented privacy. The inevitable degradation of entanglement through noise accumulated over long distances remains one of the key challenges in this area. Exploiting the potential of higher-dimensional entangled photons promises to address this challenge, but poses extreme demands on the experimental implementation. Here, we present a long-range free-space quantum link, distributing entanglement over 10.2 km with flexible dimensionality of encoding by deploying a phase-stable nonlocal Franson interferometer. With this distribution of multidimensional energy-time entangled photons, we analyze the achievable key rate in a dimensionally adaptive quantum key distribution protocol that can be optimized with respect to any environmental noise conditions. Our approach enables and emphasizes the power of high-dimensional entanglement for quantum communi-cation, yielding a positive asymptotic key rate well into the dawn of the day.

Links

MUNI/G/1596/2019, interní kód MU

Name: Development of algorithms for application of quantum computers in electronic-structure calculations in solid-state physics and chemistry (Acronym: Qubits4PhysChem)

Investor: Masaryk University, INTERDISCIPLINARY - Interdisciplinary research projects

Citovat

BULLA, Lukas, Matej PIVOLUSKA, Kristian HJORTH, Oskar KOHOUT, Jan LANG, Sebastian ECKER, Sebastian P NEUMANN, Julius BITTERMANN, Robert KINDLER, Marcus HUBER, Martin BOHMANN and Rupert URSIN. Nonlocal Temporal Interferometry for Highly Resilient Free-Space Quantum Communication. Physical Review X. College Park: American Physical Society, 2023, vol. 13, No 2, p. 1-12. ISSN 2160-3308. Available from: https://dx.doi.org/10.1103/PhysRevX.13.021001.

@article{2293017,
   author = {Bulla, Lukas and Pivoluska, Matej and Hjorth, Kristian and Kohout, Oskar and Lang, Jan and Ecker, Sebastian and Neumann, Sebastian P and Bittermann, Julius and Kindler, Robert and Huber, Marcus and Bohmann, Martin and Ursin, Rupert},
   article_location = {College Park},
   article_number = {2},
   doi = {http://dx.doi.org/10.1103/PhysRevX.13.021001},
   keywords = {KEY DISTRIBUTION;ENTANGLEMENT;LASER},
   language = {eng},
   issn = {2160-3308},
   journal = {Physical Review X},
   title = {Nonlocal Temporal Interferometry for Highly Resilient Free-Space Quantum Communication},
   url = {https://journals.aps.org/prx/abstract/10.1103/PhysRevX.13.021001},
   volume = {13},
   year = {2023}
}

TY  - JOUR
ID  - 2293017
AU  - Bulla, Lukas - Pivoluska, Matej - Hjorth, Kristian - Kohout, Oskar - Lang, Jan - Ecker, Sebastian - Neumann, Sebastian P - Bittermann, Julius - Kindler, Robert - Huber, Marcus - Bohmann, Martin - Ursin, Rupert
PY  - 2023
TI  - Nonlocal Temporal Interferometry for Highly Resilient Free-Space Quantum Communication
JF  - Physical Review X
VL  - 13
IS  - 2
SP  - 1-12
EP  - 1-12
PB  - American Physical Society
SN  - 21603308
KW  - KEY DISTRIBUTION;ENTANGLEMENT;LASER
UR  - https://journals.aps.org/prx/abstract/10.1103/PhysRevX.13.021001
N2  - Entanglement distribution via photons over long distances enables many applications, including quantum key distribution, which provides unprecedented privacy. The inevitable degradation of entanglement through noise accumulated over long distances remains one of the key challenges in this area. Exploiting the potential of higher-dimensional entangled photons promises to address this challenge, but poses extreme demands on the experimental implementation. Here, we present a long-range free-space quantum link, distributing entanglement over 10.2 km with flexible dimensionality of encoding by deploying a phase-stable nonlocal Franson interferometer. With this distribution of multidimensional energy-time entangled photons, we analyze the achievable key rate in a dimensionally adaptive quantum key distribution protocol that can be optimized with respect to any environmental noise conditions. Our approach enables and emphasizes the power of high-dimensional entanglement for quantum communi-cation, yielding a positive asymptotic key rate well into the dawn of the day.
ER  -

BULLA, Lukas, Matej PIVOLUSKA, Kristian HJORTH, Oskar KOHOUT, Jan LANG, Sebastian ECKER, Sebastian P NEUMANN, Julius BITTERMANN, Robert KINDLER, Marcus HUBER, Martin BOHMANN and Rupert URSIN. Nonlocal Temporal Interferometry for Highly Resilient Free-Space Quantum Communication. \textit{Physical Review X}. College Park: American Physical Society, 2023, vol.~13, No~2, p.~1-12. ISSN~2160-3308. Available from: https://dx.doi.org/10.1103/PhysRevX.13.021001.

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