Entropy (disambiguation)

Look up entropy in Wiktionary, the free dictionary.

Entropy, in thermodynamics, is a property originally introduced to explain the part of the internal energy of a thermodynamic system that is unavailable as a source for useful work.

Entropy may also refer to:

Thermodynamics and statistical mechanics

• Entropy (classical thermodynamics), thermodynamic entropy in macroscopic terms, with less emphasis on the statistical explanation
  • Entropic force. The product of temperature and the gradient of the entropy density is viewed an effective force, yielding a gradient in the energy density of a system.
  • Entropy production. Development of entropy in a thermodynamic system.
• Entropy (statistical thermodynamics), the statistical explanation of thermodynamic entropy based on probability theory
  • Configuration entropy, the entropy change due to a change in the knowledge of the position of particles, rather than their momentum
  • Conformational entropy, the entropy change due to a change in the "configuration" of a particle (e.g. a right-handed vs. a left-handed polyatomic molecule)
• Tsallis entropy, a generalization of Boltzmann-Gibbs entropy
• von Neumann entropy, entropy in quantum statistical physics and quantum information science

Introductory articles

• Introduction to entropy an explanation on entropy as a measure of irreversibility
• Entropy (order and disorder), the relationship of disorder with heat and work
• Entropy in thermodynamics and information theory, the relationship between thermodynamic entropy and information (Shannon) entropy
• Entropy (energy dispersal), dispersal of energy as a descriptor of entropy

Other aspects

• History of entropy
• Entropy and life, the relationship between the thermodynamic entropy and the evolution of life
• Entropy (astrophysics), the adiabatic constant

Information theory and mathematics

• Entropy (information theory), also called Shannon entropy, a measure of the unpredictability or information content of a message source
• Differential entropy, a generalization of Entropy (information theory) to continuous random variables
  • Entropy of entanglement, related to the Shannon and von Neumann entropies for entangled systems; reflecting the degree of entanglement of subsystems
• Algorithmic entropy an (incomputable) measure of the information content of a particular message
• Rényi entropy, a family of diversity measures generalising Shannon entropy; used to define fractal dimensions
• Measure theoretic entropy, a measure of exponential growth in dynamical systems; equivalent to the rate of increase of Shannon entropy of a trajectory in trajectory-space
• Topological entropy, a measure of exponential growth in dynamical systems; equivalent to the rate of increase of α->0 Renyi entropy of a trajectory in trajectory-space.
• Topological entropy in physics
• Volume entropy, a Riemannian invariant measuring the exponential rate of volume growth of a Riemannian metric
• Maximum entropy (disambiguation)
• Graph entropy, a measure of the information rate achievable by communicating symbols over a channel in which certain pairs of values may be confused.

Other uses in science and technology

• Entropy encoding, data compression strategies to produce a code length equal to the entropy of a message
• Entropy (computing), an indicator of the number of random bits available to seed cryptography systems
• Entropy (anesthesiology), a measure of a patient's cortical function, based on the mathematical entropy of EEG signals
• Entropy (ecology), measures of biodiversity in the study of biological ecology, based on Shannon and Rényi entropies
• Social entropy, a measure of the natural decay within a social system

Media

• Entropy (choreography), the difference between a transcription and a performance

Film and television

• Entropy (film), a 1999 film by Phil Joanou
• "Entropy" (Buffy episode)
• "Entropy", an episode of Criminal Minds (season 11)

Games

• Entropy (1977 board game)
• Entropy (video game)
• Entropy or Alchemiss, a character in Freedom Force vs the 3rd Reich
• N. Tropy, a character from Crash Bandicoot: Warped
• Entropy: Zero, a Source mod for Half-Life 2 released in 2017 developed by Breadman
• Entropy: Zero 2, a sequel to Entropy: Zero released in 2022
• Entropy: Zero - Uprising, a mod of Entropy: Zero developed by Employee8 and Filipad

Literature

• Entropy: A New World View, a book by Jeremy Rifkin and Ted Howard
• "Entropy", a 1960 short story by Thomas Pynchon
• "Entropy", a 1995 short story by Leanne Frahm
• Entropy (journal), a scientific journal published by MDPI
• Entropy (magazine), an online literary magazine

Music

• Entropy (album), an album by Anathallo and Javelins
• Entropy / Send Them, an EP by DJ Shadow and the Groove Robbers
• "Entropy", a song by Bad Religion from Against the Grain
• "Entropy", a song by Kelly Osbourne from Sleeping in the Nothing
• "Entropy", a song by VNV Nation from Matter + Form
• "Entropy", a song by Moxy Früvous from The 'b' Album
• "Entropy", a song by Brymo from Oṣó
• "Entropy", a song by Daniel Caesar from Case Study 01
• "Entropy", a song by MC Hawking
• "Entropy", a song by Grimes and Bleachers
• Entropia (album), an album by Pain of Salvation
• Entropy, a track by Nigel Stanford
• The Book Of Us: Entropy, an album by DAY6

Software

• Entropy (package manager), a Sabayon Linux package manager

Internet jargon

• Information entropy, relating to disruptive actions taken in Internet vigilantism

This disambiguation page lists articles associated with the same title.
If an internal link led you here, you may wish to change the link to point directly to the intended article.
Note: This page may need to be cleaned up to meet Wikipedia's quality standards. Further information might be found on the talk page.

This page was last edited on 14 February 2024, at 13:10