scholarly journals On holography for (pseudo-)conformal cosmology

2015 ◽  
Vol 741 ◽  
pp. 239-241 ◽  
Author(s):  
M. Libanov ◽  
V. Rubakov ◽  
S. Sibiryakov
Keyword(s):  
Conformal Cosmology

scholarly journals Defining Arrow of Time at The Start of Inflation Using Traditional Cosmology Initially as an Example and Finally Penrose Cyclic Conformal Cosmology with Singular versus Nonsingular Starting Points?

2021 ◽  
Author(s):  
Andrew W Beckwith
Keyword(s):  
Quantum Information ◽  
Initial Conditions ◽  
Axiomatic Approach ◽  
Cosmological Models ◽  
Arrow Of Time ◽  
Time Asymmetry ◽  
Conformal Cosmology ◽  
Definition Of ◽  
Initial Starting

We first of all define the arrow of time. Definition of the arrow of time will allow choosing different initial starting points. One of the issues we will also discuss is the interconnection be-tween the arrow of time, entropy and quantum information. Seth Lloyd in his 2001 work made a linkage between entropy, bits, and information via an axiomatic approach involving time in-tervals. Our take is a bit more general. We will discuss as well the t’Hooft’s statement as to in-itial conditions and times arrow, and how different cosmological models may influence initial conditions. Spoilers alert, if a nonsingular start to expansion existed, this would provide the most straightforward way to avoid a datum from classical relativity. That is, that in the actual equations of classical GR, there is no reason to have time asymmetry. Time asymmetry is built into initial conditions and we will detail several candidates. The first half of the paper brings up cosmology models and forming the arrow of time. The second is related to entropy itself and the problem of information. .

scholarly journals Description of supernova data in conformal cosmology without cosmological constant

2002 ◽  
Vol 530 (1-4) ◽  
pp. 20-26 ◽  
Author(s):  
Danilo Behnke ◽  
David B. Blaschke ◽  
Victor N. Pervushin ◽  
Denis Proskurin
Keyword(s):  
Cosmological Constant ◽  
Conformal Cosmology

scholarly journals Conformal Cosmology and the Pioneer Anomaly

2012 ◽  
Vol 2012 ◽  
pp. 1-12 ◽  
Author(s):  
Gabriele U. Varieschi
Keyword(s):  
Cosmological Parameters ◽  
Hubble Constant ◽  
Conformal Gravity ◽  
Conformal Cosmology ◽  
Pioneer Anomaly ◽  
Radio Signals ◽  
Anomalous Acceleration ◽  
Near Future ◽  
Pioneer 10

We review the fundamental results of a new cosmological model, based on conformal gravity, and apply them to the analysis of the early data of the Pioneer anomaly. We show that our conformal cosmology can naturally explain the anomalous acceleration of the Pioneer 10 and 11 spacecrafts, in terms of a local blueshift region extending around the solar system and therefore affecting the frequencies of the navigational radio signals exchanged between Earth and the spacecraft. By using our model, we explain the numerical coincidence between the value of the anomalous acceleration and the Hubble constant at the present epoch and also confirm our previous determination of the cosmological parameters γ∼10−28 cm−1 and δ~10-4–10-5. New Pioneer data are expected to be publicly available in the near future, which might enable more precise evaluations of these parameters.

scholarly journals Towards conformal cosmology

JETP Letters ◽  
2015 ◽  
Vol 102 (8) ◽  
pp. 561-570 ◽  
Author(s):  
M. Libanov ◽  
V. Rubakov ◽  
G. Rubtsov
Keyword(s):  
Conformal Cosmology

scholarly journals A kinematical approach to conformal cosmology

2009 ◽  
Vol 42 (4) ◽  
pp. 929-974 ◽  
Author(s):  
Gabriele Umberto Varieschi
Keyword(s):  
Conformal Cosmology ◽  
Kinematical Approach
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