Editing Entropy (disambiguation)

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'''[[Entropy]]''' is a scientific concept that is most commonly associated with a state of disorder, randomness, or uncertainty.

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'''Entropy''' may also refer to:
==Science and technology==
===Physics===
*[[Entropy (classical thermodynamics)]], thermodynamic entropy in macroscopic terms, with less emphasis on the statistical explanation
*[[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
*[[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
*[[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
*[[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
*[[Volume entropy]], a Riemannian invariant measuring the exponential rate of volume growth of a Riemannian metric
*[[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

== Arts and entertainment ==
===Film and television===
* [[Entropy (film)|''Entropy'' (film)]], a 1999 film by Phil Joanou
* [[Entropy (Buffy episode)|"Entropy" (''Buffy'' episode)]], 2002
* "Entropy", an episode of [[Criminal Minds season 11|''Criminal Minds'' season 11]]

===Games===
* [[Entropy (board game)|''Entropy'' (board game)]]
* [[Entropy (video 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 [[List of Source mods|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)|''Entropy'' (journal)]], a scientific journal published by MDPI
*[[Entropy (magazine)|''Entropy'' (magazine)]], an online literary magazine

===Music===
* ''Entropy'', a 2005 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 (Bad Religion album)|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 (musician)|Grimes]] and [[Bleachers (band)|Bleachers]]
* [[Entropia (album)|''Entropia'' (album)]], an album by Pain of Salvation
*Entropy, a track by [[Nigel Stanford]]
*''The Book Of Us: Entropy'', an album by [[Day6|DAY6]]

===Other uses in arts and entertainment===
* [[Entropy (choreography)]], the difference between a transcription and a performance

==Other uses==
*[[Entropy (package manager)]], a Sabayon Linux package manager
* Information entropy, relating to disruptive actions taken in [[Internet vigilantism]]

==See also==
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