Quantum cosmological origin of universe

In summary, the authors present a pathway from Hilbert's "Foundation of Physics" to Quantum Gravity through Dirac's Hamiltonian reduction of General Relativity and Bogoliubov's transformation. This approach involves treating the cosmological scale factor as a zero mode of the momentum constraints and avoiding the issue of "double counting" to develop a Hamiltonian cosmological perturbation theory. They also propose that the CMB radiation can be explained by the cosmological creation of universes and particles from Bogoliubov's vacuum, with theoretical and observational evidence supporting this idea. This approach offers a new perspective on the structure and history of the universe from its quantum cosmological origin.
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http://arxiv.org/abs/gr-qc/0504123

Quantum Cosmological Origin of Universes
Authors: V.N. Pervushin, V.A. Zinchuk
Comments: 25 pages, 2 figures, Invited talk at the XXXIX PNPI Winter School on Nuclear Particle Physics and XI St.Petersburg School on Theoretical Physics (St.Petersburg, Repino, February 14 - 20, 2005) this http URL

A direct pathway from Hilbert's ``Foundation of Physics'' to Quantum Gravity is established through Dirac's Hamiltonian reduction of General Relativity and Bogoliubov's transformation by analogy with a similar pathway passed by QFT in 20th century. The cosmological scale factor appears on this pathway as a zero mode of the momentum constraints treated as a global excitation of the Landau superfluid liquid type. This approach would be considered as the foundation of the well--known Lif****z cosmological perturbation theory, if it did not contain the double counting of the scale factor as an obstruction to the Dirac Hamiltonian method. After avoiding this ``double counting'' the Hamiltonian cosmological perturbation theory does not contain the time derivatives of gravitational potentials that are responsible for the CMB ``primordial power spectrum'' in the inflationary model.
The Hilbert -- Dirac -- Bogoliubov Quantum Gravity gives us another possibility to explain this ``spectrum'' and other topical problems of cosmology by the cosmological creation of both universes and particles from Bogoliubov's vacuum. We listed the set of theoretical and observational arguments in favor of that the CMB radiation can be a final product of primordial vector W-, Z- bosons cosmologically created from the vacuum when their Compton length coincides with the universe horizon. The equations describing longitudinal vector bosons in SM, in this case, are close to the equations of the inflationary model used for description of the ``power primordial spectrum'' of the CMB radiation.
 
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They show a new way to the understanding of the structure and history of the universe from its primordial quantum cosmological origin.
 
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The paper presents an interesting and novel approach to the cosmological origin of universes, connecting Hilbert's "Foundation of Physics" to Quantum Gravity. The authors propose that the cosmological scale factor can be seen as a zero mode of the momentum constraints, which are treated as a global excitation of the Landau superfluid liquid type. This approach is then used to explain the CMB "primordial power spectrum" and other problems in cosmology.

The idea of cosmological creation of universes and particles from the vacuum is intriguing and could potentially provide a new perspective on the origin of our universe. The authors also provide a set of theoretical and observational arguments to support their proposal, which adds credibility to their approach.

However, further research and evidence is needed to fully validate this theory. The paper also mentions the issue of "double counting" in the Hamiltonian cosmological perturbation theory, which needs to be addressed in order for this approach to be fully viable.

Overall, this paper presents a thought-provoking and potentially groundbreaking idea in the field of cosmology. It will be interesting to see how this theory develops and what implications it may have for our understanding of the universe.
 

Related to Quantum cosmological origin of universe

1. What is the quantum cosmological origin of the universe?

The quantum cosmological origin of the universe is a theoretical concept that attempts to explain the beginning of the universe using principles from quantum mechanics and cosmology. It suggests that the universe originated from a quantum fluctuation in a pre-existing vacuum state.

2. How is the quantum cosmological origin of the universe different from other theories of the universe's origin?

The quantum cosmological origin of the universe differs from other theories, such as the Big Bang theory, in that it does not rely on a singularity or a specific starting point. Instead, it proposes that the universe has always existed in some form and underwent a quantum transition to its current state.

3. What evidence supports the quantum cosmological origin of the universe?

Currently, there is no direct evidence that supports the quantum cosmological origin of the universe. However, it is consistent with certain observations, such as the cosmic microwave background radiation and the large-scale structure of the universe.

4. Can the quantum cosmological origin of the universe be tested?

Due to the limitations of our current technology and understanding, it is difficult to test the quantum cosmological origin of the universe directly. However, scientists are working on developing theories and experiments that could potentially provide evidence for or against this concept.

5. How does the quantum cosmological origin of the universe relate to the search for a theory of everything?

The quantum cosmological origin of the universe is closely linked to the search for a theory of everything, as it attempts to unite quantum mechanics and cosmology in a single framework. It is believed that understanding the origin of the universe could provide valuable insights into the fundamental laws of nature and potentially lead to a comprehensive theory of everything.

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