Planck 2015 cosmological results

Perdereau, O.

doi:10.1063/1.4953315

Cited by 3 publications

(3 citation statements)

References 15 publications

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“…Over the last decades, observations of high-redshift supernovae of type Ia revealed the current accelerated expansion of the Universe [56][57][58][59]. This result has been confirmed by temperature anisotropies of the cosmic microwave background radiation [60,61], and by many different data. According to the most recent estimates, dark energy provides about 75% of matterenergy content in the Universe.…”

Section: Constraining Dark Energy Models At High Redshiftsmentioning

confidence: 83%

Einstein, Planck and Vera Rubin: Relevant Encounters Between the Cosmological and the Quantum Worlds

et al. 2021

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In Cosmology and in Fundamental Physics there is a crucial question like: where the elusive substance that we call Dark Matter is hidden in the Universe and what is it made of? that, even after 40 years from the Vera Rubin seminal discovery [1] does not have a proper answer. Actually, the more we have investigated, the more this issue has become strongly entangled with aspects that go beyond the established Quantum Physics, the Standard Model of Elementary particles and the General Relativity and related to processes like the Inflation, the accelerated expansion of the Universe and High Energy Phenomena around compact objects. Even Quantum Gravity and very exotic Dark Matter particle candidates may play a role in framing the Dark Matter mystery that seems to be accomplice of new unknown Physics. Observations and experiments have clearly indicated that the above phenomenon cannot be considered as already theoretically framed, as hoped for decades. The Special Topic to which this review belongs wants to penetrate this newly realized mystery from different angles, including that of a contamination of different fields of Physics apparently unrelated. We show with the works of this ST that this contamination is able to guide us into the required new Physics. This review wants to provide a good number of these “paths or contamination” beyond/among the three worlds above; in most of the cases, the results presented here open a direct link with the multi-scale dark matter phenomenon, enlightening some of its important aspects. Also in the remaining cases, possible interesting contacts emerges. Finally, a very complete and accurate bibliography is provided to help the reader in navigating all these issues.

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Section: Constraining Dark Energy Models At High Redshiftsmentioning

confidence: 83%

Einstein, Planck and Vera Rubin: Relevant Encounters Between the Cosmological and the Quantum Worlds

et al. 2021

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“…An important point regarding the compact at manifolds M 3 is that any holonomy γ i ∈ Γ of an orientable Euclidean 3−space can always be expressed as a screw motion (in the covering space E 3 ), which is a combination of a rotation R α, u by an angle α around an axis u, say, followed by a translation along a vector L = L w, say. 6 The action of a holonomy γ ∈ Γ on a generic point p of the covering manifold is given by p → γp = R p + L. When there is no rotational part in the screw motion, α = 0, the holonomy reduces to a pure translation, and its action is exactly the same at every point in covering space. In this case, the distance between p and its image by the holonomy γ, namely |γp − p| = L, is the same for all points p. For a proper screw motion (α = 0), however, the distance |γp − p| depends on the location of p, and in particular on the distance between p and the axis of rotation.…”

Section: Topological Essentialsmentioning

confidence: 99%

“…Despite our present-day inability to predict the spatial topology from a fundamental theory, one should be able to probe it through cosmic microwave background (CMB) or (and) primordial gravitational waves [1,2] observed recently [3], which should obey some basic detectability conditions [4]. For recent topological constraints from CMB data see references [5,6]. For some limits of these searches for topology through a CMB method see reference [7].…”

Section: Introductionmentioning

confidence: 99%

Electromagnetic vacuum fluctuations and topologically induced motion of a charged particle

Béssa

Rebouças

2020

Class. Quantum Grav.

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We show that a nontrivial topologies of the spatial section of Minkowski space-time allow for motion of a charged particle under quantum vacuum fluctuation of the electromagnetic field. This is a potentially observable effect of the quantum vacuum fluctuations of the electromagnetic field.We derive mean squared velocity dispersion when the charged particle lies in Minkowski spacetime with compact spatial sections in one, two and/or three directions. We concretely examine the details of these stochastic motions when the spatial section is endowed with different globally homogeneous and inhomogeneous topologies. We also show that compactification in just one

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Anisotropic Cosmological Models with Two Fluids

Mishra

Ray

Pacif

2018

Advances in High Energy Physics

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Anisotropic dark energy cosmological models have been constructed in a Bianchi V space-time, with the energy momentum tensor consisting of two noninteracting fluids, namely, bulk viscous fluid and dark energy fluid. Two different models are constructed based on the power law cosmology and de Sitter universe. The constructed model was also embedded with different pressure gradients along different spatial directions. The variable equation of state (EoS) parameter and skewness parameters for both models are obtained and analysed. The physical properties of the models obtained with the use of scale factors of power law and de Sitter law are also presented.

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Planck 2015 cosmological results

Cited by 3 publications

References 15 publications

Einstein, Planck and Vera Rubin: Relevant Encounters Between the Cosmological and the Quantum Worlds

Einstein, Planck and Vera Rubin: Relevant Encounters Between the Cosmological and the Quantum Worlds

Electromagnetic vacuum fluctuations and topologically induced motion of a charged particle

Anisotropic Cosmological Models with Two Fluids

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