Birth of the Universe From the Multiverse

Mersini-Houghton, Laura

doi:10.1142/9789814623995_0240

Cited by 7 publications

(11 citation statements)

References 38 publications

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“…Beyond the "cosmic tapestry" which is now a proven observational fact, we now find ourselves living in a bounded component of an unlimited "multiverse". The concept of multiverse has been supported by a certain number of experts, among which L. Mersini-Houghton [7]. That "multiversal tapestry", if it is real, saves us from the problem of "boundary" without appealing to curved manifolds and without necessity of the anthropo-centered idea of Big Bang.…”

Section: Twin Universes or Multiversal Net?mentioning

confidence: 99%

About Dark Matter and Gravitation

Haraux¹

2020

Preprint

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A close inspection of Zwicky's seminal papers on the dynamics of galaxy clusters reveals that the discrepancy discovered between the dynamical mass and the luminous mass of clusters has been widely overestimated in 1933 as a consequence of several factors, among which the excessive value of the Hubble constant $H_0$, then believed to be about seven times higher than today's average estimate. Taking account, in addition, of our present knowledge of classical dark matter inside galaxies, the contradiction can be reduced by a large factor. To explain the rather small remaining discrepancy of the order of 5, instead of appealing to a hypothetic exotic dark matter, the possibility of a inhomogeneous gravity is suggested. This is consistent with the ``cosmic tapestry" found in the eighties by De Lapparent and her co-authors, showing that the cosmos is highly inhomogeneous at large scale. A possible foundation for inhomogeneous gravitation is the universally discredited ancient theory of Fatio de Duillier and Lesage on pushing gravity, possibly revised to avoid the main criticisms which led to its oblivion. This model incidentally opens the window towards a completely non-standard representation of cosmos, and more basically calls to develop fundamental investigation to find the origin of the large scale inhomogeneity in the distribution of luminous matter

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Section: Twin Universes or Multiversal Net?mentioning

confidence: 99%

About Dark Matter and Gravitation

Haraux¹

2020

Preprint

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“…These modifications, first predicted in [5][6][7][8] and then [9] for concave potentials, produce a series of anomalies, such as a suppressed σ 8 , a giant void of size 200 Mpc, suppressed spectrum at low multipoles, and so on. Previously, we checked the status of these predictions with Planck 2015 collaboration data for the exponential and Starobinsky type models of inflation in [10,11].…”

Section: Discussionmentioning

confidence: 93%

“…where V ef f , V ef f and V ef f are given respectively from Equations (3), (7) and (10). Please note that the correction to the field solution contains (1 + df /dV )/(1 + f /V ).…”

Section: The Modified Hilltop Potentialmentioning

confidence: 99%

Testing Predictions of the Quantum Landscape Multiverse 3: The Hilltop Inflationary Potential

Valentino

Mersini-Houghton

2019

Symmetry

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Here we test the predictions of the theory of the origin of the universe from the landscape multiverse, against the 2015 Planck data, for the case of the Hilltop class of inflationary models, for p = 4 and p = 6. By considering the quantum entanglement correction of the multiverse, we can place just a lower limit on the local 'SUSY-breaking' scale, respectively b > 8.7 × 10 6 GeV at 95% c.l. and b > 1.3 × 10 8 GeV at 95% c.l. from Planck TT+lowP, so the case with multiverse correction is statistically indistinguishable from the case with an unmodified inflation. We find that the series of anomalies predicted by the quantum landscape multiverse for the allowed range of b, is consistent with Planck's tests of the anomalies. In addition, the friction between the two cosmological probes of the Hubble parameter and with the weak lensing experiments goes away for a particular subset, the p = 6 case of Hilltop models.PACS numbers: I. INTRODUCTIONThe final Planck likelihood for the data analysis will be released soon. So far, the existence of an intriguing series of anomalies in the CMB has been strongly evidenced by the 2015 Planck collaboration data [1, 2] and recently confirmed by the new 2018 data [3,4]. The observed anomalies are consistent with the prediction made in 2005 [5-8], and more recently in [9][10][11], of the theory of the origin of the universe from the quantum landscape [12-17] multiverse. As we await the final Planck collaboration likelihood release, we complete our investigation of the status of the quantum landscape predictions against data, for a class of concave potential, the hilltop models [18,19].Hilltop models were investigating in detail in a series of papers in [18,19]. They belong to the class of concave shaped inflationary models, meaning the curvature of their potential V < 0. These types of potentials are favored by Planck collaboration data [1,4] since they produce a low tensor-to-scalar perturbations ratio r. Corrections to the gravitational potential in the universe, which in the theory of the quantum landscape multiverse, arise from our entanglement with all other structures in the multiverse and give rise to a series of anomalies in the CMB, were derived in [9][10][11] and analyzed for some concave inflationary models. In this paper, we derive and analyze these corrections against data in the context of Hilltop models.The paper is organized as follows: in the next Section we present the Hilltop model, and the corrections introduced by the entanglement in the quantum landscape multiverse to the slow-rolling inflaton field and to the inflaton potential, showing as anomalies in the CMB spectrum. In Section III we present the method we used for analyzing the model with the data. We provide the results and the likelihood plots in Section IV for p = 4 and Section V for p = 6. We conclude in Section VI. * Electronic address: eleonora.divalentino@manchester.ac.uk

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“…Mersini-Houghton and others [40][41][42][43] developed a theory of the initial conditions of the Universe from a quantum multiverse and derived the selection of the initial states from the quantum dynamics of gravity acting on the string landscape. In [44,45], Di Valentino and Mersini-Houghton compare the predictions of a theory of the origin of the universe from a quantum landscape multiverse against the data of the Planck satellite.…”

Section: From Universe To Multiversementioning

confidence: 99%

Do We Live in the Best of All Possible Worlds? The Fine-Tuning of the Constants of Nature

Naumann

2017

Universe

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Our existence depends on a variety of constants which appear to be extremely fine-tuned to allow for the existence of life as we know it. These include the number of spatial dimensions, the strengths of the forces, the masses of the particles, the composition of the Universe, and others. On the occasion of the 300th anniversary of the death of G.W. Leibniz, we discuss the question of whether we live in the "Best of all possible Worlds". The hypothesis of a multiverse could explain the mysterious fine tuning of so many fundamental quantities. Anthropic arguments are critically reviewed.

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Birth of the Universe From the Multiverse

Cited by 7 publications

References 38 publications

About Dark Matter and Gravitation

About Dark Matter and Gravitation

Testing Predictions of the Quantum Landscape Multiverse 3: The Hilltop Inflationary Potential

Do We Live in the Best of All Possible Worlds? The Fine-Tuning of the Constants of Nature

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