De Broglie—Bohm Interpretation of Canonical Quantum Cosmology Implies Early Stages of the Universe Dominated by Radiation

2013 ◽  
Vol 60 (6) ◽  
pp. 691-694 ◽  
Author(s):  
Ch'ng Han Siong ◽  
Shahidan Radiman
Keyword(s):  
Quantum Cosmology ◽  
Early Stages ◽  
Bohm Interpretation ◽  
The Universe ◽  
Canonical Quantum ◽  
De Broglie Bohm

The spatially flat Friedmann equation for early rainbow universe

2015 ◽  
Vol 30 (31) ◽  
pp. 1550165
Author(s):  
Han Siong Ch’ng ◽  
Geri Gopir ◽  
Shahidan Radiman
Keyword(s):  
Early Universe ◽  
Quantum Cosmology ◽  
Gravitational Constant ◽  
Friedmann Equation ◽  
Late Time ◽  
Friedmann Equations ◽  
Bohm Interpretation ◽  
The One ◽  
Canonical Quantum ◽  
De Broglie Bohm

We derive the spatially flat rainbow-Friedmann equation from de Broglie–Bohm interpretation in canonical quantum cosmology. Our result shows that the spatially flat rainbow-Friedmann equations of early and late-time universe are having different forms. The spatially flat rainbow-Friedmann equation of early universe which is obtained in this paper is quite different from the one which was initially derived by Magueijo and Smolin [Class. Quantum Grav. 21, 1725 (2004)]. However, the spatially flat rainbow-Friedmann equation for late-time universe obtained in this paper is found to be the same as the one derived by Magueijo and Smolin (for the case [Formula: see text] and Newton’s gravitational constant [Formula: see text]. The new spatially flat rainbow-Friedmann equation obtained in this paper could provide an alternative way in understanding the evolution of the early rainbow universe.

scholarly journals DE BROGLIE–BOHM INTERPRETATION FOR WAVE FUNCTION OF REISSNER–NORDSTRÖM–DE SITTER BLACK HOLE

2000 ◽  
Vol 15 (14) ◽  
pp. 2059-2075 ◽  
Author(s):  
MASAKATSU KENMOKU ◽  
HIROTO KUBOTANI ◽  
EIICHI TAKASUGI ◽  
YUKI YAMAZAKI
Keyword(s):  
Black Hole ◽  
Wave Function ◽  
Spherically Symmetric ◽  
De Sitter ◽  
Semiclassical Gravity ◽  
Symmetric Geometry ◽  
Bohm Interpretation ◽  
Canonical Quantum ◽  
Ordinary Quantum ◽  
De Broglie Bohm

We study the canonical quantum theory of the spherically symmetric geometry with the cosmological constant and the electromagnetic field. We obtain a solution of the Wheeler–DeWitt equation for the geometrical variables and investigate the wave function from a viewpoint of the de Broglie–Bohm interpretation of the ordinary quantum mechanics. The de Broglie–Bohm interpretation introduces deterministic rigid trajectories on the minisuperspace without any outside observers nor the collapse of the wave function. It is shown that the wave function does not only correspond to the classical Reissner–Nordström–de Sitter black hole in the semiclassical region, but it also represents quantum geometrical fluctuations near the black hole horizon and the cosmological one. The result suggests that the semiclassical gravity on which the Hawking radiation is based is broken near the horizons.

scholarly journals De Broglie–Bohm interpretation of a Hořava–Lifshitz quantum cosmology model

2018 ◽  
Vol 33 (02) ◽  
pp. 1850014 ◽  
Author(s):  
G. Oliveira-Neto ◽  
L. G. Martins ◽  
G. A. Monerat ◽  
E. V. Corrêa Silva
Keyword(s):  
Perfect Fluid ◽  
Quantum Cosmology ◽  
Scale Factor ◽  
Quantum Potential ◽  
Quantum Level ◽  
Strong Indication ◽  
Bohm Interpretation ◽  
De Broglie Bohm

In this paper, we consider the De Broglie–Bohm interpretation of a Hořava–Lifshitz quantum cosmology model in the presence of a radiation perfect fluid. We compute the Bohm’s trajectory for the scale factor and show that it never goes to zero. That result gives a strong indication that this model is free from singularities at the quantum level. We also compute the quantum potential. That quantity helps in understanding why the scale factor never vanishes.

scholarly journals Topology change in canonical quantum cosmology

1997 ◽  
Vol 56 (6) ◽  
pp. 3329-3340 ◽  
Author(s):  
Vitorio A. De Lorenci ◽  
Jéro⁁me Martin ◽  
Nelson Pinto-Neto ◽  
Ivano Damião Soares
Keyword(s):  
Quantum Cosmology ◽  
Topology Change ◽  
Canonical Quantum

Yoga and The Physics of Higher States of Consciousness

2018 ◽  
pp. 335-358
Author(s):  
Alex Hankey
Keyword(s):  
Quantum Cosmology ◽  
Sense Perception ◽  
Pure Consciousness ◽  
States Of Consciousness ◽  
Action Refinement ◽  
Higher States Of Consciousness ◽  
Modern Physics ◽  
Inner Light ◽  
The Universe

Higher states of consciousness are developed by meditation, defined by Patanjali as that which transforms focused attention into pure consciousness, the 4th state of pure consciousness - a major state in its own right, with its own physics, that of ‘experience information'. Phenomenologies of states 5 to 7 are explained from the perspective of modern physics and quantum cosmology. The role of the 5th state in life is to make possible witnessing states 1 to 3 resulting in ‘Perfection in Action'. Refinement of perception involved in the 6th State results in hearing the Cosmic Om, seeing the Inner Light, and seventh sense perception. All require special amplification processes on pathways of perception. Unity and Brahman Consciousness and their development are discussed with examples from the great sayings of the Upanishads, and similar cognitions like those of poet, Thomas Traherne. Throughout, supporting physics is given, particularly that of experience information, and its implications for Schrodinger's cat paradox and our scientific understanding of the universe as a whole.

Tomographic analysis of quantum and classical de Sitter cosmological models

2019 ◽  
Vol 28 (16) ◽  
pp. 2040009 ◽  
Author(s):  
Cosimo Stornaiolo
Keyword(s):  
Quantum Cosmology ◽  
Classical Limit ◽  
Initial Conditions ◽  
Quantum Tomography ◽  
Wave Functions ◽  
Hamiltonian Constraint ◽  
De Sitter ◽  
Quantum Universe ◽  
Tomographic Analysis ◽  
The Universe

In this work, we show the importance of introducing the quantum tomography formalism to analyze the properties of wave functions in quantum cosmology. In particular, we examine the initial conditions of the universe proposed by various authors in the context of de Sitter’s cosmology studying their classical limit and comparing it with the classical tomogram obtained from the Hamiltonian constraint in General Relativity. This comparison gives us the opportunity to find under which conditions there is a transition from the quantum universe to the classical one. A relevant result is that in these models the decay of the cosmological constant is a sufficient condition for this transition.

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