A Coherent View on Entropy ()
Abstract
Informational
entropy is often identified as physical entropy. This is surprising because the
two quantities are differently defined and furthermore the former is a
subjective quantity while the latter is an objective one. We describe the
problems and then present a possible view that reconciles the two entropies.
Informational entropy of a system is interpreted as physical entropy of a whole
composed of both the system and “memories” containing information about the
system.
Conflicts of Interest
The authors declare no conflicts of interest.
References
[1]
|
Waldram, J.R. (1985) The Theory of Thermodynamics. Cambridge University Press, Cambridge.
|
[2]
|
Reif, F. (1965) Fundamentals of Statistical and Thermal Physics. McGraw-Hill, New York.
|
[3]
|
Valentini, A. (1991) Signal-Locality, Uncertainty, and the Subquantum H-Theorem. I. Physical Letters A, 156, 5-11. http://dx.doi.org/10.1016/0375-9601(91)90116-P
|
[4]
|
Peres, A. (1995) Quantum Theory: Concepts and Methods. Kluwer Academic Publishers, Dordrecht.
|
[5]
|
Shannon, C.E. (1948) A Mathematical Theory of Communication. Bell System Technical Journal, 27, 379-423. http://dx.doi.org/10.1002/j.1538-7305.1948.tb01338.x
|
[6]
|
Schlogl, F. (2010) Coincidence and Laws in Physics. American Journal of Physics, 78, 7-8. http://dx.doi.org/10.1119/1.3224763
|
[7]
|
Maruyama, K., Nori, F. and Vedral, V. (2009) Colloquium: The Physics of Maxwell’s Demon and Information. Reviews of Modern Physics, 81, 1-23. http://dx.doi.org/10.1103/RevModPhys.81.1
|
[8]
|
Wehrl, A. (1978) General Properties of Entropy. Reviews of Modern Physics, 50, 221-260. http://dx.doi.org/10.1103/RevModPhys.50.221
|
[9]
|
Zeh, H.D. (2005) Where Has All the Information Gone? Physical Letters A, 347, 1-7. http://dx.doi.org/10.1016/j.physleta.2005.05.065
|
[10]
|
Hawking, S.W. (2004) Unpublished Contribution at GR17 (Doublin).
|