Description of supernova data in conformal cosmology without cosmological constant

@article{Behnke2002DescriptionOS,
  title={Description of supernova data in conformal cosmology without cosmological constant},
  author={Danilo Behnke and David B. Blaschke and Victor N. Pervushin and Denis Proskurin},
  journal={Physics Letters B},
  year={2002},
  volume={530},
  pages={20-26}
}
Abstract We consider cosmological consequences of a conformal-invariant formulation of Einstein's General Relativity where instead of the scale factor of the spatial metrics in the action functional a massless scalar (dilaton) field occurs which scales all masses including the Planck mass. Instead of the expansion of the universe we obtain the Hoyle–Narlikar type of mass evolution, where the temperature history of the universe is replaced by the mass history. We show that this conformal… Expand

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References

SHOWING 1-10 OF 53 REFERENCES
Conformal unification of general relativity and standard model
Abstract The unification of general relativity and standard model for strong and electro-weak interactions is considered on the basic of the conformal symmetry principle. TheExpand
COSMOLOGY AND THE FATE OF DILATATION SYMMETRY
Abstract We discuss the cosmological constant problem in the light of dilatation symmetry and its possible anomaly. For dilatation symmetric quantum theories realistic asymptotic cosmology isExpand
Cosmological consequences of conformal general relativity
We consider cosmological consequences of a conformal-invariant unified theory which is dynamically equivalent to general relativity and is given in a space with the geometry of similarity. We showExpand
Cosmological Creation of Vector Bosons and Fermions
The cosmological creation of primordial vector bosons and fermions is described in the Standard Model of strong and electro-weak interactions given in a spacetime with the relative standard ofExpand
A unified conformal model for fundamental interactions without dynamical Higgs field
A Higgsless model for strong, electroweak and gravitational interactions is proposed. This model is based on the local symmetry group SU(3)×SU(2)L×U(1)×C,where C is the local conformal symmetryExpand
Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
We present spectral and photometric observations of 10 Type Ia supernovae (SNe Ia) in the redshift range 0.16 " z " 0.62. The luminosity distances of these objects are determined by methods thatExpand
Bogoliubov quasiparticles in constrained systems
This paper is devoted to the formulation of quantum field theory for an early universe in general relativity, considered as the Dirac general constrained system. The main idea is the HamiltonianExpand
Superconformal symmetry, supergravity and cosmology
We introduce the general N = 1 gauge theory superconformally coupled to supergravity. The theory has local SU(2,2|1) symmetry and no dimensional parameters. The superconformal origin of theExpand
Quintessence, cosmic coincidence, and the cosmological constant
Recent observations suggest that a large fraction of the energy density of the Universe has negative pressure. One explanation is vacuum energy density; another is quintessence in the form of aExpand
Exact solutions of Einstein conformal scalar equations
The massless scalar field which satisfies a conformally invariant equation is in some respects more interesting than the ordinary one. Unfortunately, few, if any, exact solutions of Einstein'sExpand
...
1
2
3
4
5
...