The laws of thermodynamics and information for emergent cosmology

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• 作者：M. Hashemi ; S. Jalalzadeh ; S. Vasheghani Farahani
• 关键词：Emergent cosmology ; Landauer’s principle ; Bekenstein–Hawking entropy ; Asymptotic holographic principle
• 刊名：General Relativity and Gravitation
• 出版年：2015
• 出版时间：November 2015
• 年：2015
• 卷：47
• 期：11
• 全文大小：448 KB
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• 作者单位：M. Hashemi (1)
  S. Jalalzadeh (1)
  S. Vasheghani Farahani (2)
  
  1. Department of Physics, Shahid Beheshti University, G. C., Evin, 19839, Tehran, Iran
  2. Department of Physics, Tafresh University, P.O. Box 39518-79611, Tafresh, Iran
  
• 刊物类别：Physics and Astronomy
• 刊物主题：Physics
  Mathematical and Computational Physics
  Relativity and Cosmology
  Differential Geometry
  Quantum Physics
  Astronomy, Astrophysics and Cosmology
  
• 出版者：Springer Netherlands
• ISSN：1572-9532

文摘

The aim here is to provide a set of equations for cosmology in terms of information and thermodynamical parameters. The method we implement in order to describe the universe is a development of Padmanabhan’s approach which is based on the fact that emergence of the cosmic space is provided by the evolution of the cosmic time. In this line we obtain the Friedmann equation or its equivalent the conservation law in terms of information by the implementation of Landauer’s principle or in other words the information loss/production rate. Hence, a self consistent description of the universe is provided in terms of thermodynamical parameters. This is due to the fact that in this work the role of information which is the most important actor of all times, has stepped in to cosmology. We provide a picture of the emergent cosmology merely based on the information theory. In addition, we introduce a novel entropy on the horizon, which can also generalize Bekenstein–Hawking entropy for the asymptotic holographic principle.