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.

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Hwang, W. (2014) A Coherent View on Entropy. Natural Science, 6, 540-544. doi: 10.4236/ns.2014.67053.

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[10] Hawking, S.W. (2004) Unpublished Contribution at GR17 (Doublin).

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