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Roger Eugene Hill
The life, career, scientific and spiritual insights of a physicist plus a few excursions into Complexity Science and Art.




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Cosmic inflation from entangled qubits: a white hole model for emergent spacetime.
Cosmic inflation from entangled qubits: a white hole model for emergent spacetime.


Summary and conclusions of the paper:

This paper presents the Horizon Model of cosmology (HM) that was developed for the express purpose of eliminating the cosmological constant (vacuum catastrophe) problem (Martin (2012)). It does this by assuming the energy density in the vacuum is equal to the energy density of the observable universe. The foundation of HM is based on the primacy of quantum information (Wheeler (1990)) leading to the understanding that the first element of reality emerging from the Big Bang singularity, the Planck region, is a qubit. The HM views the Big Bang singularity as the opening of a white hole and the vacuum as the interior of that white hole. It invokes the Schwartzchild solution and the Holographic Principle to calculate the number of qubits Iq required for that equality. HM is tied to observation by comparing Iq to published estimates of the number of Shannon bits (entropy), S, in the observable universe (Egan and Lineweaver (2010)). The HM can then be used to calculate the properties of the vacuum and the event horizon as a function of S.

The results for two particular values of S are presented here. Table 1 shows the results for S=1 corresponding to t=0 and Tables 2 and 3 list the results for S=1.46x10104 bits corresponding to t=now.

The HM results for t=0 show that a blob of 4x1016 non-local entangled qubits produced a quantized bit on the vacuum horizon from which the first bit of local spacetime emerged. This first blob is logically equivalent to the “inflaton” of the cosmic inflation paradigm. According to HM, it had an energy density of 2+2 -1 x10105 GeV/m3, a temperature of 7+3-2 x1023 K and a volume with an e-fold expansion relative to lp3 of N = 60.9 +1.2-1. This is in good agreement with the cosmic inflation paradigm which requires N > 60 (Ellis and Wands (2023)). The large uncertainties in these results reflect the uncertainties in the estimates of S by Egan and Lineweaver, ΔEL (Egan and Lineweaver (2010))

. The ΔEL provided by Egan and Lineweaver are too large to permit meaningful comparison with measurements. So the uncertainties in ΔEL were artificially adjusted to fix Ωvac = 1.00 ± 0.01 ⇒ ΔΩ and to fit the SH0ES measurement of H0 = 73 ± 1.0 ⇒ ΔSH. Using ΔΩ, the vacuum horizon is quantized in bits of area AS = 5.23 ± 0.06x10-52m2.

The HM prediction for Hvac with ΔΩ is 67.9± 0.4 which is within 0.8σ of the H0 value measured by the Planck collaboration (Planck Collaboration (2020)).

The HM predictions for the vacuum pressure with ΔΩ is 7.77 ± 0.09x10-10 Pa while with ΔSH it is 9±0.3x10-10 Pa. These are in agreement with measurements of the pressure on the lunar surface made by NASA and the Chinese space program of ∼ 10-10 Pa (Detian et al (2021)).

I am an experimenter/computer-modeler and this is not a theoretical paper but HM does point to a new direction for theoretical research. In HM, 3D+1 spacetime and matter/energy emerge from a quantized 2D surface surrounding a region of entanglement. This is in keeping with current research on emergent spacetime. But the specific basic question raised by HM is: How could a 3D blob of 4x1016 entangled Planck sized binary qubits give rise to a quantized 2D horizon from which emerges time, gravity and matter/energy? Other supplementary questions present themselves. Could the qubits be a superposition of [gravitons,photons]? Is time created through Heisenberg fluctuations among the qubits? Is time an emergent property 9 resulting from the network of 4x1016 entangled qubits?

This paper presents the observational credentials for a model that proposes a quantized event horizon as the source of spacetime/gavity. It is clear that theoretical research into the questions posed by this model hold promise of leading to a quantum theory of gravity.

[9: In the sense of Complexity Science ⇒the whole is greater that the sum of its parts because of the network among them.]



Click here to view a PDF of the full paper.
February 5, 2025

I presented a 10 minute talk on April 25, 2023 at the Virtual April Meeting of the American Physical Society in a session entitled "Cosmology and the CMB". The talk is entitled "The Non-local Vacuum, A Framework for New Physics" and presents the essence of the Horizon Model.

Click here to view a 10 minute video of my talk..
April 27, 2023.



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