The Integration of Quantum Communication and Quantum Sensors

A special issue of Photonics (ISSN 2304-6732). This special issue belongs to the section "Quantum Photonics and Technologies".

Deadline for manuscript submissions: 31 August 2024 | Viewed by 937

Special Issue Editors


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Guest Editor

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Guest Editor
Centre Tecnològic de Telecomunicacions de Catalunya, Barcelona, Spain
Interests: machine learning; satellite communication; free space optics and quantum optics communication

E-Mail Website
Guest Editor
Centre Tecnològic de Telecomunicacions de Catalunya, Barcelona, Spain
Interests: satellite communication; free space optics and quantum optics communication; modulation schemes

Special Issue Information

Dear Colleagues,

Secure communication and precision sensing can be enhanced by integrating quantum communication and quantum sensors. With quantum communication and quantum sensing, functionalities that go beyond classical limits can be achieved through the principles of quantum mechanics.

Communication using quantum bits, or qubits, differs from classical communication, which uses classical bits to transmit information. Superposition and entanglement are fundamental principles of quantum mechanics that are crucial to quantum 
communication security.

Quantum sensors measure physical quantities with high precision using the principles of quantum mechanics. To achieve levels of sensitivity and accuracy that are beyond what classical sensors can achieve, they exploit quantum properties, like superposition and entanglement. Quantum sensors have a wide range of applications such as metrology, navigation, medical imaging, and environmental monitoring.

This interdisciplinary field of research combining quantum communication with quantum sensors is on the verge of revolutionizing secure communication and precision sensing. For this integration to be fully realized in different practical scenarios, ongoing research and technological advancements are essential.

Dr. Satyendra Kumar Mishra
Dr. Miguel Ángel Vázquez
Dr. Joan Bas
Guest Editors

Manuscript Submission Information

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Keywords

  • free-space quantum communication
  • satellite-based quantum communication
  • fiber-based quantum communication
  • two-dimensional-materials-based quantum sensor
  • OAM-mode-based quantum communication in fibers and free space
  • quantum-sensor-based devices
  • quantum photodetectors
  • quantum bio- and chemical sensors

Published Papers (1 paper)

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Research

14 pages, 12042 KiB  
Article
Tightly Trapped Atom Interferometer inside a Hollow-Core Fiber
by Yitong Song, Wei Li, Xiaobin Xu, Rui Han, Chengchun Gao, Cheng Dai and Ningfang Song
Photonics 2024, 11(5), 428; https://doi.org/10.3390/photonics11050428 - 3 May 2024
Viewed by 740
Abstract
We demonstrate a fiber-guided atom interferometer in a far-off-resonant trap (FORT) of 100 μK. The differential light shift (DLS) introduced by the FORT leads to the inhomogeneous dephasing of the tightly trapped atoms inside a hollow-core fiber. The DLS-induced dephasing is greatly suppressed [...] Read more.
We demonstrate a fiber-guided atom interferometer in a far-off-resonant trap (FORT) of 100 μK. The differential light shift (DLS) introduced by the FORT leads to the inhomogeneous dephasing of the tightly trapped atoms inside a hollow-core fiber. The DLS-induced dephasing is greatly suppressed in π/2-π-π/2 Doppler-insensitive interferometry. The spin coherence time is extended to 13.4 ms by optimizing the coupling of the trapping laser beam into a quasi-single-mode hollow-core anti-resonant fiber. The Doppler-sensitive interferometry shows a much shorter coherence time, indicating that the main limits to our fiber-guided atom interferometer are the wide axial velocity distribution and the irregular modes of the Raman laser beams inside the fiber. This work paves the way for portable and miniaturized quantum devices, which have advantages for inertial sensing at arbitrary orientations and in dynamic environments. Full article
(This article belongs to the Special Issue The Integration of Quantum Communication and Quantum Sensors)
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