Work

Secure communication based on sensing of undetected photons

Year: 2024

Type: article

Abstract: In this paper, we introduce a secure optical communication protocol that harnesses quantum correlation within entangled photon pairs. A message written by acting on one of the photons can be read by measuring exclusively the other photon of the pair. In this scheme, a bright, meaningless optical beam hides the message, rendering it inaccessible to potential eavesdroppers. Unlike traditional methods, our approach only affects unauthorized users, fundamentally limiting their access to the communication channel. We demonstrate the effectiveness of our protocol by achieving secure communication through both amplitude and phase modulation, relying on single-photon measurements, as opposed to most approaches which rely on coincidence measurements. We successfully demonstrate the resilience of the data transfer to noise up to 105 times greater than the signal, and we employ this technique for the secure transfer of an image.

Source: Springer Link (Chiba Institute of Technology)

DOI: 10.1051/epjconf/202430908009/pdf

Authors: Jean Sternberg, Julien Voisin, Charline Roux, Yannick Chassagneux, Maria Amanti

Institutions: Centre National de la Recherche Scientifique, Université Paris Cité, Laboratoire Matériaux et Phénomènes Quantiques, Université Paris Sciences et Lettres, École Normale Supérieure - PSL, Sorbonne Université, Laboratoire de Physique de l'Ecole Normale Supérieure

Language: English

Topic: Quantum Information and Cryptography

Subfield: Artificial Intelligence

Field: Computer Science

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W6903192298

FWCI:

Cites:

Cited by:

Related to: