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Entropy Principle for the Evolution of the Universe


Affiliations
1 Department of Systems Engineering, Faculty of Engineering, Shizuoka University, Hamamatsu City, 432-8561, Japan
 

The universe began with Big Bang and is expanding, and the expansion is accelerating at present. Entropy of the universe beco mes larger and larger, hence the Second Law of Thermodynamics is valid in this process. The acceleration of the expansion of the un iverse is considered due to "dark energy". The amount (density) of dark energy decreases when some amount of dark energy changes to matter. Energy is equivalent to matt er: Einstein formula E=mc2 , which is shown to be valid for the conversion of matter to energy, and also for the conversion of energy to matter. When the large amount of dark energy decreases by the change to matter, the decrease of dark energy induces the change of the dynamics of the universe from expansion to shrinking, and the universe shrinks smaller and smaller. According to the Second Law of Thermodynamics (Entropy Principle), the randomne ss of the state of the universe becomes larger with time in this shrinking process. Finally, the universe shrinks to a point with very large randomness in the state and vanishes (Big Crunch): the end of the universe. Thus, the Second Law of Thermodynamics describes all processes of the evolution of the universe from the beginning to the end. The validity of the Second Law of Thermodynamics (Entropy Principle) in the universe has been established in this article, for the first time. The assertion of Clausius in 1865 has been shown to be valid for the first time here, after a long time since his assertion.

Keywords

The Universe, Entropy, Dark Energv, The Expanding Universe, The Shrinking Universe, The End (Death) of the Universe.
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  • Einstein A. Autobiographical Notes: ed. P.A. Schilpp, The Library of Living Philosophers, Inc. Evanston, Ill. USA, 1979:31. M. J. Klein, Thermodynamics in Einstein’s Thought, Science. 1967;157:509.

  • Hutchinson GE. The lacustrine microcosm reconsidered. Amer Sci. 1964;52:334.

  • Aoki I, Entropy principle for the development of complex biotic systems. ---Organisms, Ecosystems, the Earth---Elsevier, London, UK. 2012.

  • Clausius R. Über verschiedene für die Anwendung bequeme Formen der Hauptgleichungen der mechanischen Wärmetheorie. Ann. d. Phys. 1865;125:353. English translation: ed. T.A. Hirst, The Mechanical Theory of Heat, London, 1867;327.

  • Prigogine I, Defay R. Chemical Thermodynamics, Longmans Green and Co., London, UK. 1954.

  • Aoki I. Entropy Principle for the Evolution of Living Systems and the Universe —From Bacteria to the Universe—.J Phys soc. Jpn. 2018;87:104801-1.

  • Tolman RC. On the Problem of the Entropy of the Universe as a Whole. Phys Rev. 1931;37:1639.

  • Tolman RC. Relativity, Thermodynamics and Cosmology. (Oxford Univ. Press, 1934).

  • Prigigine I. Thermodynamics and cosmology. Int J Theor Phys. 1989;28:927.

  • Lineweaver CH. The Entropy of the Universe and the Maximum Entropy Production Principle, in: Dewar RC, Lineweaver CH, Niven RK, Regenauer Lieb K. Eds., Beyond the second law, Entropy production and non-equilibrium systems, Springer, Berlin. 2014:415.

  • Gamow G. Expanding universe and the origin of elements. Phys Rev. 1946;70:572.

  • Alpher RA, Bethe H, Gamow G. The Origin of Chemical Elements. Phys Rev. 1948;73:803.

  • Penzias AA, Wilson RW. A measurement of excess antenna temperature at 4080 mc/s. Astrophys J. 1965;142:419.

  • Hubble E. A relation between distance and radial velocity among extra-galactic nebulae. Proc Nat Acad Sci. 1929;15:168.

  • Riess AG, Filippenko AV, Challis P, et al. Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant. Astron J. 1998;116:1009.

  • Perlmutter S, Aldering G, Goldhaber G, et al. Measurements of Ω and Λ from 42 High-Redshift Supernovae.Astrophys J. 1999;517:565.

  • Jee I., Suyu SH, Komatsu E, et al. A measurement of the Hubble constant from angular diameter distances to two gravitational lenses. Science. 2019;365:1134.

  • Friedmann A. Über die Möglichkeit einer Welt mit konstanter negativer Krümmung des Raumes. Zeitschr. für Phys.1924;21:326. English translation: On the Possibility of a World with Constant Negative Curvature of Space. Gen Rel Grav. 1999;31:2001.

  • Turner MS. Dark Matter and Dark Energy in the Universe. The third stromlo symp.: The Galac. Halo ASP Conf.Ser. 1999;165:431.

  • NASA/Jet Propulsion Laboratory, “Dark energy is driving universe apart: NASA's Galaxy Evolution Explorer finds dark energy repulsive”. Science daily, 2011.

  • Mandelbaum R, Blake C, Bridle S, et al. The WiggleZ Dark Energy Survey: Direct constraints on blue galaxy intrinsic alignments at intermediate redshifts. Mon Not R Astron Soc. 2011;410:844-59.

  • Einstein A. Ist die Trägheit eines Körpers von seinem Energieinhalt abhängig? Ann d Phys. 1905;18:639. English translation: Lorentz HA, Einstein A, Minkowski H, et al, Eds. Does the Inertia of a Body Depend upon its Energy Content? The Principle of Relativity, Dover, NY, USA, 2017:69.

  • Cockcroft JD, Walton ETS. Experiments with high velocity positive ions. II. -The disintegration of elements by high velocity protons. Proc Roy Soc A London. 1932;137:229.

  • Rainville S, Thompson JK, Myers EG, et al. A direct test of E=mc2 . Nature. 2005;438;1096-97.

  • Dürr S, Fodor Z, Frison J, et al. Ab Initio Determination of Light Hadron Masses. Science. 2008;322:1224-27.

  • Yang YB, Liang J, Bi YJ, et al. Proton Mass Decomposition from the QCD Energy Momentum Tensor. Phys Rev Lett. 2018;121:212001-1.

  • Breit G, Wheeler JA. Collision of Two Light Quanta. Phys Rev. 1934;46:1087.

  • Pike OJ, Mackenroth F, Hill EG, et al. A photon–photon collider in a vacuum hohlraum. Nature Photon.2014;8:434-36.

  • Penrose R. Before the Big Bang: An outrageous new perspective and its implications for particle physics. Proc. EPAC 2006, Edinburgh, Scotland, 2006:2759. Cycles of Time: An Extraordinary New View of the Universe. The Bodley Head, London, UK, 2010.


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  • Entropy Principle for the Evolution of the Universe

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Authors

Ichiro Aoki
Department of Systems Engineering, Faculty of Engineering, Shizuoka University, Hamamatsu City, 432-8561, Japan

Abstract


The universe began with Big Bang and is expanding, and the expansion is accelerating at present. Entropy of the universe beco mes larger and larger, hence the Second Law of Thermodynamics is valid in this process. The acceleration of the expansion of the un iverse is considered due to "dark energy". The amount (density) of dark energy decreases when some amount of dark energy changes to matter. Energy is equivalent to matt er: Einstein formula E=mc2 , which is shown to be valid for the conversion of matter to energy, and also for the conversion of energy to matter. When the large amount of dark energy decreases by the change to matter, the decrease of dark energy induces the change of the dynamics of the universe from expansion to shrinking, and the universe shrinks smaller and smaller. According to the Second Law of Thermodynamics (Entropy Principle), the randomne ss of the state of the universe becomes larger with time in this shrinking process. Finally, the universe shrinks to a point with very large randomness in the state and vanishes (Big Crunch): the end of the universe. Thus, the Second Law of Thermodynamics describes all processes of the evolution of the universe from the beginning to the end. The validity of the Second Law of Thermodynamics (Entropy Principle) in the universe has been established in this article, for the first time. The assertion of Clausius in 1865 has been shown to be valid for the first time here, after a long time since his assertion.

Keywords


The Universe, Entropy, Dark Energv, The Expanding Universe, The Shrinking Universe, The End (Death) of the Universe.

References