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Entropy is a scientific concept that is most commonly associated with a state of disorder, randomness, or uncertainty. The term and the concept are used...

In information theory, the entropy of a random variable quantifies the average level of uncertainty or information associated with the variable's potential...

process." The second law of thermodynamics establishes the concept of entropy as a physical property of a thermodynamic system. It predicts whether processes...

gas constant, in Planck's law of black-body radiation and Boltzmann's entropy formula, and is used in calculating thermal noise in resistors. The Boltzmann...

energy, and will therefore be unable to sustain processes that increase entropy. Heat death does not imply any particular absolute temperature; it only...

statistics, the Kullback–Leibler (KL) divergence (also called relative entropy and I-divergence), denoted D KL ( P ∥ Q ) {\displaystyle D_{\text{KL}}(P\parallel...

In chemistry, the standard molar entropy is the entropy content of one mole of pure substance at a standard state of pressure and any temperature of interest...

bound of black hole thermodynamics, which conjectures that the maximum entropy in any region scales with the radius squared, rather than cubed as might...

In information theory, an entropy coding (or entropy encoding) is any lossless data compression method that attempts to approach the lower bound declared...

law of thermodynamics requires that black holes have entropy. If black holes carried no entropy, it would be possible to violate the second law by throwing...

entropy desired for each one. Their answers vary between 29 bits of entropy needed if only online attacks are expected, and up to 96 bits of entropy needed...

entropy states that the probability distribution which best represents the current state of knowledge about a system is the one with largest entropy,...

be done locally, and the macroscopic entropy will then be given by the integral of the locally defined entropy density. It has been found that many systems...

maximum entropy locally on earth; "locally" on earth, that is, when compared to the heat death of the universe, taken as a whole. The term "entropy pessimism"...

Rosenthal Diego Gutierrez March 12, 2002 (2002-03-12) 6ABB17 5.01 118 18 "Entropy" James A. Contner Drew Z. Greenberg April 30, 2002 (2002-04-30) 6ABB18...

Research concerning the relationship between the thermodynamic quantity entropy and both the origin and evolution of life began around the turn of the...

In thermodynamics, entropy is a numerical quantity that shows that many physical processes can go in only one direction in time. For example, cream and...

physical process capable of producing entropy (in other words, the device always has access to a physical entropy source), unlike the pseudorandom number...

after Jacob Bekenstein) is an upper limit on the thermodynamic entropy S, or Shannon entropy H, that can be contained within a given finite region of space...

Thermoeconomists argue that economic systems always involve matter, energy, entropy, and information. Then, based on this premise, theoretical economic analogs...