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

Quantum Numbers02:43

Quantum Numbers

45.6K
It is said that the energy of an electron in an atom is quantized; that is, it can be equal only to certain specific values and can jump from one energy level to another but not transition smoothly or stay between these levels.
45.6K
Neuronal Communication01:28

Neuronal Communication

2.0K
Neurons, the fundamental units of the brain and nervous system, communicate through complex electrochemical signals that underpin all cognitive and bodily functions. This communication is primarily facilitated by a process involving the generation and propagation of an action potential along the axon of the neuron. When the internal electrical charge of a neuron surpasses a certain threshold, an action potential is triggered. This rapid change in voltage travels swiftly along the axon to the...
2.0K
Communication01:03

Communication

8.0K
Communication between two animals occurs when one animal transmits an information signal that causes a change in the animal that receives the information. Organisms communicate with one another in a host of different ways. Signals can be auditory, chemical, visual, tactile, or a combination of these. Communication is a critical behavioral adaptation that promotes survival, growth, and reproduction.
8.0K
Signal and System01:26

Signal and System

1.3K
A signal x(t) is a set of data or a time function representing a variable of interest. Signals typically convey information about a phenomenon, such as atmospheric temperature, humidity, human voice, television images, a dog's bark, or birdsongs. More generally, a signal can be a function of more than one independent variable. For instance, images depend on horizontal and vertical positions and can be regarded as two-dimensional signals. However, this text will focus on one-dimensional...
1.3K
Network Covalent Solids02:18

Network Covalent Solids

15.1K
Network covalent solids contain a three-dimensional network of covalently bonded atoms as found in the crystal structures of nonmetals like diamond, graphite, silicon, and some covalent compounds, such as silicon dioxide (sand) and silicon carbide (carborundum, the abrasive on sandpaper). Many minerals have networks of covalent bonds.
To break or to melt a covalent network solid, covalent bonds must be broken. Because covalent bonds are relatively strong, covalent network solids are typically...
15.1K
Network Function of a Circuit01:25

Network Function of a Circuit

439
Frequency response analysis in electrical circuits provides vital insights into a circuit's behavior as the frequency of the input signal changes. The transfer function, a mathematical tool, is instrumental in understanding this behavior. It defines the relationship between phasor output and input and comes in four types: voltage gain, current gain, transfer impedance, and transfer admittance. The critical components of the transfer function are the poles and zeros.
439

You might also read

Related Articles

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

Sort by
Same author

Flatband Resonance Enhanced Second-Harmonic Generation in Thin-Film Lithium Niobate Moiré Microcavity.

Nano letters·2026
Same author

Observing non-Hermiticity induced chirality breaking in a synthetic Hall ladder.

Light, science & applications·2025
Same author

Enhanced Second-Harmonic Generation in Thin-Film Lithium Niobate Circular Bragg Nanocavity.

Nano letters·2024
Same author

The Recent Applications of PLGA-Based Nanostructures for Ischemic Stroke.

Pharmaceutics·2023
Same author

Synthesis of Polysubstituted Furans via Rh(II)-Catalyzed [2 + 3] Annulation of <i>N</i>-Sulfonyl-1,2,3-triazoles with Enaminones.

Organic letters·2023
Same author

Production of Phenylacetylcarbinol via Biotransformation Using the Co-Culture of <i>Candida tropicalis</i> TISTR 5306 and <i>Saccharomyces cerevisiae</i> TISTR 5606 as the Biocatalyst.

Journal of fungi (Basel, Switzerland)·2023

Related Experiment Video

Updated: Oct 20, 2025

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

823

A 15-user quantum secure direct communication network.

Zhantong Qi1, Yuanhua Li2,3, Yiwen Huang1

  • 1State Key Laboratory of Advanced Optical Communication Systems and Networks, School of Physics and Astronomy, Shanghai Jiao Tong University, 200240, Shanghai, China.

Light, Science & Applications
|September 15, 2021
PubMed
Summary

This study demonstrates a quantum secure direct communication (QSDC) network using time-energy entanglement, achieving high fidelity for 15 users. The research paves the way for future satellite-based QSDC networks.

More Related Videos

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
05:39

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

Published on: August 2, 2019

9.9K
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

9.3K

Related Experiment Videos

Last Updated: Oct 20, 2025

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

823
Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
05:39

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

Published on: August 2, 2019

9.9K
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

9.3K

Area of Science:

  • Quantum Information Science
  • Quantum Communication Networks
  • Entanglement-based Quantum Cryptography

Background:

  • Quantum secure direct communication (QSDC) enables direct transmission of confidential information using quantum entanglement.
  • A key limitation in current QSDC is the difficulty in simultaneously distinguishing encoded entangled states.

Purpose of the Study:

  • To explore and demonstrate a QSDC network utilizing time-energy entanglement and sum-frequency generation.
  • To assess the performance and feasibility of a multi-user QSDC network.

Main Methods:

  • Implementation of a fully connected QSDC network with 15 users.
  • Utilizing time-energy entanglement and sum-frequency generation for state encoding and distribution.
  • Experimental verification of entangled state fidelity and information transmission rates over optical fiber.

Main Results:

  • Achieved a high entangled state fidelity of over 97% between any two users in the network.
  • Maintained an entangled state fidelity above 95% for QSDC over 40 km of optical fiber.
  • Sustained an information transmission rate exceeding 1 Kbp/s for QSDC links.

Conclusions:

  • The proposed QSDC network architecture is feasible and demonstrates practical application potential.
  • The results provide a foundation for developing long-distance, satellite-based global QSDC systems.