J 2021

Quantum Key Distribution Overcoming Extreme Noise: Simultaneous Subspace Coding Using High-Dimensional Entanglement

DODA, M., M. HUBER, G. MURTA, Matej PIVOLUSKA, Martin PLESCH et. al.

Basic information

Original name

Quantum Key Distribution Overcoming Extreme Noise: Simultaneous Subspace Coding Using High-Dimensional Entanglement

Authors

DODA, M., M. HUBER, G. MURTA, Matej PIVOLUSKA (703 Slovakia, guarantor, belonging to the institution), Martin PLESCH (703 Slovakia, belonging to the institution) and C. VLACHOU

Edition

PHYSICAL REVIEW APPLIED, COLLEGE PK, AMER PHYSICAL SOC, 2021, 2331-7019

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10201 Computer sciences, information science, bioinformatics

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 4.931

RIV identification code

RIV/00216224:14610/21:00121422

Organization unit

Institute of Computer Science

UT WoS

000632394300001

Keywords in English

quantum key distribution; qudits

Tags

Tags

International impact, Reviewed
Změněno: 13/4/2022 13:40, RNDr. Matej Pivoluska, Ph.D.

Abstract

V originále

High-dimensional entanglement promises to increase the information capacity of photons and is now routinely generated, exploiting spatiotemporal degrees of freedom of single photons. A curious feature of these systems is the possibility of certifying entanglement despite strong noise in the data. We show that it is also possible to exploit this noisy high-dimensional entanglement for quantum key distribution by introducing a protocol that uses multiple subspaces of the high-dimensional system simultaneously. Our protocol can be used to establish a secret key even in extremely noisy experimental conditions, where qubit protocols fail. To show that, we analyze the performance of our protocol for noise models that apply to the two most commonly used sources of high-dimensional entanglement: time bins and spatial modes.

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