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A Natural Introduction to Fine-Tuning
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The problem of fine-tuning in physics is a well-known topic within the philosophy of physics as mentioned in this paper, the fact that the universal constants seem to take non-arbitrary values in order for live to thrive in our Universe.Abstract:
A well-known topic within the philosophy of physics is the problem of fine-tuning: the fact that the universal constants seem to take non-arbitrary values in order for live to thrive in our Universe. In this paper we will talk about this problem in general, giving some examples from physics. We will review some solutions like the design argument, logical probability, cosmological natural selection, etc. Moreover, we will also discuss why it's dangerous to uphold the Principle of Naturalness as a scientific principle. After going through this paper, the reader should have a general idea what this problem exactly entails whenever it is mentioned in other sources and we recommend the reader to think critically about these concepts.read more
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Astrophysical bounds on the masses of axions and Higgs particles
TL;DR: Lower bounds on the mass of a light scalar (Higgs) or pseudoscalar (axion) particle are found in three ways: (1) by requiring that their effect on primordial nucleosynthesis not yield a deuterium abundance outside present experimental limits, (2) that the photons from their decay thermalize and not distort the microwave background, and (3) that their emission from helium burning stars (red giants) not disrupt stellar evolution as mentioned in this paper.
Book ChapterDOI
The Unreasonable Effectiveness of Mathematics in the Natural Sciences
TL;DR: Schrodinger as discussed by the authors stated that he didn't like quantum mechanics and was sorry he ever had anything to do with it, and he was disgusted with quantum mechanics in any way.
Particles And Nuclei An Introduction To The Physical Concepts
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Naturally Fine Tuned for Life A Defence of Metaphysical Naturalism
Colin Mangan,Colin +1 more
TL;DR: The Fine-Tuning Argument (FTA) is an argument put forward by proponents of theism, in which they attempt to make a case from Bayesian inference, that the [apparently] fine tuned constants of our universe is more likely given a theistic hypothesis, than a naturalistic one as discussed by the authors .
References
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Particle Creation by Black Holes
TL;DR: In this article, it is shown that quantum mechanical effects cause black holes to create and emit particles as if they were hot bodies with temperature, which leads to a slow decrease in the mass of the black hole and to its eventual disappearance.
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TL;DR: In this article, five different approaches to the cosmological constant problem are described, and a brief review of the history of this problem is given. But none of the approaches are considered in this paper.
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TL;DR: In this article, it was pointed out that a global U(1) symmetry, introduced in order to preserve the parity and time-reversal invariance of strong interactions despite the effects of instantons, would lead to a neutral pseudoscalar boson, the "axion", with mass roughly of order 100 keV to 1 MeV.
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Problem of Strong $P$ and $T$ Invariance in the Presence of Instantons
TL;DR: In this article, the color gauge theory of strong interactions without arbitrary adjustment of parameters is analyzed and several possibilities are identified, including one which would give a remarkable new kind of very light, long-lived pseudoscalar boson.
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On the origin of gravity and the laws of Newton
TL;DR: In this article, the authors present a heuristic argument that shows that Newton's law of gravitation naturally arises in a theory in which space emerges through a holographic scenario and gravity is identified with an entropic force caused by changes in the information associated with the positions of material bodies.