By Arieh Ben-Naim
The central message of this publication is that thermodynamics and statistical mechanics will make the most of changing the unlucky, deceptive and mysterious time period entropy with a extra common, significant and acceptable time period equivalent to details, lacking details or uncertainty. This substitute could facilitate the translation of the motive force of many procedures when it comes to informational adjustments and dispel the secret that has continuously enshrouded entropy.
it's been a hundred and forty years due to the fact Clausius coined the time period entropy ; virtually 50 years due to the fact that Shannon built the mathematical thought of knowledge in this case renamed entropy. during this e-book, the writer advocates exchanging entropy through details, a time period that has turn into regularly occurring in lots of branches of technology.
the writer additionally takes a brand new and impressive method of thermodynamics and statistical mechanics. details is used not just as a device for predicting distributions yet because the basic cornerstone notion of thermodynamics, held before through the time period entropy.
the subjects lined contain the basics of likelihood and data conception; the final thought of knowledge in addition to the actual suggestion of knowledge as utilized in thermodynamics; the re-derivation of the Sackur Tetrode equation for the entropy of an incredible gasoline from merely informational arguments; the elemental formalism of statistical mechanics; and lots of examples of straightforward approaches the driver for that is analyzed by way of details.
- Elements of likelihood thought;
- Elements of knowledge idea;
- Transition from the final MI to the Thermodynamic MI;
- The constitution of the rules of Statistical Thermodynamics;
- Some basic purposes.
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Additional info for A farewell to entropy: statistical thermodynamics based on information: S=logW
Siano X ed Y indipendenti con densit`a di probabilit`a pX (x) e pY (y) rispettivamente, trovare la densit`a di probabilit`a delle variabili Z = XY e Q = X/Y . 16. L’indipendenza implica la scorrelazione ma non e` vero il viceversa. Si consideri il caso con P(X = ±1,Y = 1) = P(X = ±1,Y = −1) = 1 , 6 P(X = 0,Y = ±1) = P(X = ±1,Y = 0) = 0 , P(X = 0,Y = 0) = Mostrare che 1 . 3 XY = X Y P(X = i,Y = j) = P(X = i)P(Y = j) . Letture consigliate Un libro utile per cominciare: P. Contucci, S. Isola, Probabilit`a elementare (Zanichelli, 2008).
N + 1)n! ≥ 2n n! 2 /2 ∞ 0 x
16) e` il calcolo della densit`a di probabilit`a del modulo della velocit`a in meccanica statistica classica. 19) Questo e` ﬁsicamente sensato se il raggio di interazione tra le coppie di particelle e` piccolo rispetto alla grandezza lineare del sistema descritto dalle variabili X1 . 16) si ha 2 pv (v) = 4πBv2 e−Av . 16) abbiamo pE (E)dE = cost. E