Quantum Keyless Private Communication under intense background noise

Fuente: arXiv
Guardado en:
Detalles Bibliográficos
Autores principales: Mendes, Pedro Neto, Rusca, Davide, Zbinden, Hugo, Cruzeiro, Emmanuel Zambrini
Formato: Preprint
Publicado: 2025
Materias:
Acceso en línea:
Etiquetas: Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
_version_ 1866911473162256384
author Mendes, Pedro Neto
Rusca, Davide
Zbinden, Hugo
Cruzeiro, Emmanuel Zambrini
author_facet Mendes, Pedro Neto
Rusca, Davide
Zbinden, Hugo
Cruzeiro, Emmanuel Zambrini
contents Quantum key distribution relies on quantum mechanics to securely distribute cryptographic keys, offering security but necessitating complex infrastructure and significant resources for practical implementation. Quantum keyless private communication ensures information-theoretic security in free-space communication, with simpler setups, and without the need for secret keys by leveraging the wiretap channel model. Here we propose a variant of quantum keyless private communication using polarization encoding and experimentally validate both the original on-off keying method and the polarization-multiplexed approach using time-multiplexed threshold single-photon detectors as photon counting detectors. Our analysis highlights the advantages of polarization-multiplexed schemes for daylight operation. This work paves the way towards practical and scalable quantum communication systems, with potential applications extending to space-based communication.
format Preprint
id arxiv_https___arxiv_org_abs_2505_07940
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Quantum Keyless Private Communication under intense background noise
Mendes, Pedro Neto
Rusca, Davide
Zbinden, Hugo
Cruzeiro, Emmanuel Zambrini
Quantum Physics
Quantum key distribution relies on quantum mechanics to securely distribute cryptographic keys, offering security but necessitating complex infrastructure and significant resources for practical implementation. Quantum keyless private communication ensures information-theoretic security in free-space communication, with simpler setups, and without the need for secret keys by leveraging the wiretap channel model. Here we propose a variant of quantum keyless private communication using polarization encoding and experimentally validate both the original on-off keying method and the polarization-multiplexed approach using time-multiplexed threshold single-photon detectors as photon counting detectors. Our analysis highlights the advantages of polarization-multiplexed schemes for daylight operation. This work paves the way towards practical and scalable quantum communication systems, with potential applications extending to space-based communication.
title Quantum Keyless Private Communication under intense background noise
topic Quantum Physics
url https://arxiv.org/abs/2505.07940