Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Energy Stored In A Coaxial Cable01:31

Energy Stored In A Coaxial Cable

1.3K
A coaxial cable consists of a central copper conductor used for transmitting signals, followed by an insulator shield, a metallic braided mesh that prevents signal interference, and a plastic layer that encases the entire assembly.
In the simplest form, a coaxial cable can be represented by two long hollow concentric cylinders in which the current flows in opposite directions. The magnetic field inside and outside the coaxial cable is determined by using Ampère's law. The magnetic...
1.3K
Cable Subjected to a Distributed Load01:24

Cable Subjected to a Distributed Load

590
The analysis of suspension bridges is a complex and critical process that involves multiple factors, including the shape and tension of the main cables. The main cables of suspension bridges are subjected to distributed loads, which result in changes in tensile forces and deformation of the cable. These loads must be carefully considered to ensure that the bridge is safe and capable of supporting the weight of different loads.
590
Discrete-Time Fourier Series01:20

Discrete-Time Fourier Series

183
The Discrete-Time Fourier Series (DTFS) is a fundamental concept in signal processing, serving as the discrete-time counterpart to the continuous-time Fourier series. It allows for the representation and analysis of discrete-time periodic signals in terms of their frequency components. Unlike its continuous counterpart, which utilizes integrals, the calculation of DTFS expansion coefficients involves summations due to the discrete nature of the signal.
For a discrete-time periodic signal x[n]...
183
Properties of Fourier Transform II01:24

Properties of Fourier Transform II

138
The Fourier Transform (FT) is an essential mathematical tool in signal processing, transforming a time-domain signal into its frequency-domain representation. This transformation elucidates the relationship between time and frequency domains through several properties, each revealing unique aspects of signal behavior.
The Frequency Shifting property of Fourier Transforms highlights that a shift in the frequency domain corresponds to a phase shift in the time domain. Mathematically, if x(t) has...
138

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Extra-cervical arterial involvement in patients with spontaneous cervical artery dissection.

Journal of hypertension·2025
Same author

Formation of luminescent defects in 4H-SiC upon ion irradiation and ns laser annealing.

Scientific reports·2025
Same author

Effects of Thermal Oxidation and Proton Irradiation on Optically Detected Magnetic Resonance Sensitivity in Sub-100 nm Nanodiamonds.

ACS applied materials & interfaces·2025
Same author

Optical-Comb-Based Frequency Stability Transfer Across the Spectrum With a Multichannel FPGA.

IEEE transactions on ultrasonics, ferroelectrics, and frequency control·2025
Same author

Limitations of Bulk Diamond Sensors for Single-Cell Thermometry.

Sensors (Basel, Switzerland)·2024
Same author

SARS-CoV-2-Specific CD8<sup>+</sup> T-Cells in Blood but Not in the Lungs of Vaccinated K18-hACE2 Mice after Infection.

Vaccines·2023
Same journal

Serum vitamin D level and its association with vertigo frequency and severity in Meniere disease.

Scientific reports·2026
Same journal

PFA-Net: a physics-informed feature enhancement and attention network for interpretable bearing fault diagnosis under strong noise.

Scientific reports·2026
Same journal

Circulating inflammatory, redox, and apoptosis-related alterations in drug-naive idiopathic pulmonary fibrosis: an exploratory case-control study.

Scientific reports·2026
Same journal

A baseline-oriented dynamic aggregation approach for demand-side heterogeneous controllable resources.

Scientific reports·2026
Same journal

Temporal precision and accuracy in schizophrenia: an exploratory study.

Scientific reports·2026
Same journal

Prefrontal EEG spectral and nonlinear signatures of subthreshold depression during resting state and affectively valenced picture/video viewing: a participant-level analysis.

Scientific reports·2026
See all related articles

Related Experiment Video

Updated: May 11, 2025

Quasi-light Storage for Optical Data Packets
07:45

Quasi-light Storage for Optical Data Packets

Published on: February 6, 2014

10.7K

QKD protected fiber-based infrastructure for time dissemination.

Alice Meda1, Alberto Mura2, Salvatore Virzì3

  • 1Istituto Nazionale di Ricerca Metrologica (INRiM), Strada delle Cacce, 91, Turin, 10135, Italy.

Scientific Reports
|April 18, 2025
PubMed
Summary
This summary is machine-generated.

Quantum Key Distribution (QKD) secures fiber-optic time and frequency dissemination. This protects critical infrastructure by enabling precise clock synchronization while preventing unauthorized access to time data.

Keywords:
QKDSecure digital infrastructureSynchronizationTime disseminationWhite Rabbit

More Related Videos

Generation and Coherent Control of Pulsed Quantum Frequency Combs
06:42

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

8.9K
Large Scale Energy Efficient Sensor Network Routing Using a Quantum Processor Unit
05:30

Large Scale Energy Efficient Sensor Network Routing Using a Quantum Processor Unit

Published on: September 8, 2023

455

Related Experiment Videos

Last Updated: May 11, 2025

Quasi-light Storage for Optical Data Packets
07:45

Quasi-light Storage for Optical Data Packets

Published on: February 6, 2014

10.7K
Generation and Coherent Control of Pulsed Quantum Frequency Combs
06:42

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

8.9K
Large Scale Energy Efficient Sensor Network Routing Using a Quantum Processor Unit
05:30

Large Scale Energy Efficient Sensor Network Routing Using a Quantum Processor Unit

Published on: September 8, 2023

455

Area of Science:

  • Quantum Information Science
  • Network Security
  • Metrology

Background:

  • Critical infrastructure relies on accurate time and frequency (TF) dissemination.
  • Existing TF services are vulnerable to security threats.
  • Fiber-optic networks are essential for high-precision TF signal transmission.

Purpose of the Study:

  • To demonstrate the protection of fiber-based TF dissemination services using Quantum Key Distribution (QKD).
  • To enable secure and precise TF signal exchange over critical infrastructure.
  • To investigate the impact of QKD on TF synchronization accuracy.

Main Methods:

  • Implementation of Quantum Key Distribution (QKD) for secure key exchange.
  • Integration of the White Rabbit technique for high-precision time synchronization.
  • Dissemination of time and frequency signals over a fiber-optic link.

Main Results:

  • Achieved secure sharing of time information between two locations.
  • Demonstrated clock synchronization with a stability of [Formula: see text] at 1 s, traceable to the Italian time scale.
  • Confirmed that encrypted time signals provide no useful information to third parties regarding synchronization status.

Conclusions:

  • QKD can effectively protect critical fiber-based TF dissemination infrastructure.
  • The combined QKD and White Rabbit technique ensures both security and precision in TF synchronization.
  • While security is enhanced, there is a minor degradation in time stability when signals are encrypted.