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

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 field inside...
Propagation Speed of Electromagnetic Waves01:30

Propagation Speed of Electromagnetic Waves

Electromagnetic waves are consistent with Ampere's law. Assuming there is no conduction current Ampere's law is given as:
Energy Carried By Electromagnetic Waves01:22

Energy Carried By Electromagnetic Waves

Anyone who has used a microwave oven knows there is energy in electromagnetic waves. Sometimes, this energy is obvious, such as in the summer sun's warmth. At other times, it is subtle, such as the unfelt energy of gamma rays, which can destroy living cells. Electromagnetic waves bring energy into a system through their electric and magnetic fields. These fields can exert forces and move charges in the system and, thus, do work on them. However, there is energy in an electromagnetic wave,...
Maximum Power Transfer01:16

Maximum Power Transfer

Numerous practical applications within engineering disciplines, such as telecommunications, necessitate optimizing power delivery to a connected load. This pursuit, however, entails inherent internal losses, which can either equal or exceed the power supplied to the load. The Thevenin equivalent circuit is helpful in finding the maximum power a linear circuit can deliver to a load. It is assumed in this context that the load resistance can be adjusted.
By substituting the entire circuit with...
Energy and Power Signals01:17

Energy and Power Signals

In an electrical system with a resistor, voltage and current signals facilitate the measurement of power and energy across the resistor. For a continuous-time signal, the total energy over a time interval is defined as the integral of the square of the signal's magnitude over that interval. Mathematically, this is expressed as:
Energy Conservation and Bernoulli's Equation01:16

Energy Conservation and Bernoulli's Equation

Applying the conservation of energy principle or the work-energy theorem to an incompressible, inviscid fluid in laminar, steady, irrotational flow leads to Bernoulli's equation. It states that the sum of the fluid pressure, potential, and kinetic energy per unit volume is constant along a streamline.
All the terms in the equation have the dimension of energy per unit volume. The kinetic energy per unit volume is called the kinetic energy density, and the potential energy per unit volume is...

You might also read

Related Articles

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

Sort by
Same author

Realizing Shor's algorithm with topological acoustic phase bits.

Communications engineering·2026
Same author

SLM steering-based covert communication over strong atmospheric turbulence channels.

Optics express·2025
Same author

Quantum logic gate analogies in nonlinear acoustics.

The Journal of the Acoustical Society of America·2025
Same author

Entanglement assisted free-space optical communication with two-pump-based entanglement generation outperforming classical laser communication in strong turbulence regime at 10 Gb/s.

Optics express·2025
Same author

Information encoding and encryption in acoustic analogues of qubits.

Scientific reports·2024
Same author

Entanglement-Based CV-QKD with Information Reconciliation over Entanglement-Assisted Link.

Entropy (Basel, Switzerland)·2024

Related Experiment Video

Updated: May 23, 2026

Quasi-light Storage for Optical Data Packets
07:45

Quasi-light Storage for Optical Data Packets

Published on: February 6, 2014

Statistical physics inspired energy-efficient coded-modulation for optical communications.

Ivan B Djordjevic1, Lei Xu, Ting Wang

  • 1Electrical and Computer Engineering, University of Arizona, 1230 East Speedway Boulevard, Tucson, Arizona 85721, USA. ivan@email.arizona.edu

Optics Letters
|April 20, 2012
PubMed
Summary
This summary is machine-generated.

Statistical physics methods optimize signal constellation design for energy-efficient (EE) transmissions. This approach, combined with low-density parity-check (LDPC) codes, enhances performance over traditional methods in optical communication systems.

More Related Videos

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
09:43

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Published on: March 20, 2017

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
09:23

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Published on: May 30, 2014

Related Experiment Videos

Last Updated: May 23, 2026

Quasi-light Storage for Optical Data Packets
07:45

Quasi-light Storage for Optical Data Packets

Published on: February 6, 2014

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
09:43

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Published on: March 20, 2017

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
09:23

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Published on: May 30, 2014

Area of Science:

  • Information Theory
  • Statistical Physics
  • Optical Communications

Background:

  • Shannon's entropy relates to thermodynamic entropy via Stirling's approximation.
  • Statistical physics offers methods for energy minimization applicable to signal design.

Purpose of the Study:

  • To apply statistical physics energy minimization to signal constellation design.
  • To develop energy-efficient (EE) signal constellations for optical systems.
  • To evaluate the performance of EE constellations with low-density parity-check (LDPC) codes.

Main Methods:

  • Utilizing Stirling's approximation to link Shannon's entropy and thermodynamic entropy.
  • Developing an algorithm for energy-efficient signal constellation design.
  • Combining EE constellations with large-girth LDPC codes.
  • Proposing a discrete-time implementation for D-dimensional transceivers.

Main Results:

  • Statistical physics-based EE signal constellations significantly outperform conventional schemes.
  • The proposed EE constellations show superior performance when paired with LDPC codes.
  • Demonstrated effectiveness in polarization-division multiplexed quadrature amplitude modulation systems.

Conclusions:

  • Energy-efficient signal constellation design is feasible using statistical physics principles.
  • The integration of EE constellations and LDPC codes offers a substantial performance gain.
  • The proposed system is suitable for advanced optical communication implementations.