Relic gravitational waves and cosmology

@article{Grishchuk2005RelicGW,
  title={Relic gravitational waves and cosmology},
  author={Leonid P. Grishchuk},
  journal={Physics-Uspekhi},
  year={2005},
  volume={48},
  pages={1235-1247}
}
The paper begins with a brief recollection of interactions of the author with Ya B Zeldovich in the context of the study of relic gravitational waves. The principles and early results on the quantum-mechanical generation of cosmological perturbations are then summarized. The expected amplitudes of relic gravitational waves differ in various frequency windows, and therefore the techniques and prospects of their detection are distinct. One section of the paper describes the present state of… 

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References

SHOWING 1-10 OF 90 REFERENCES
On the observational determination of squeezing in relic gravitational waves and primordial density perturbations
We develop a theory in which relic gravitational waves and primordial density perturbations are generated by strong variable gravitational field of the early Universe. The generating mechanism is the
GRAVITON CREATION IN THE EARLY UNIVERSE
Astronomers investigate two kinds of electromagnetic radiation: ( I ) that which was emitted by localized sources such as stars, galaxies, and nebulae in recent (from cosmological point of view)
Quantum effects in cosmology
A review of quantum effects in cosmology is given. The main emphasis is made on physical interpretations and possible observational consequences of the effects. The paper includes the following
Gravitational waves and the cosmological equation of state
Primordial gravitational waves are amplified during eras when their wavelengths are pushed outside the cosmological horizon. This occurs in both inflationary and ``pre-big-bang'' or ``bounce''
Relic gravitational waves and their detection
The range of expected amplitudes and spectral slopes of relic (squeezed) gravitational waves, predicted by theory and partially supported by observations, is within the reach of sensitive
Theoretical tools for CMB physics
This review presents, in a self–consistent manner, those analytical tools that are relevant for the analysis of the physics of CMB anisotropies generated in different theoretical models of the early
Cosmic background radiation anisotropies in universes dominated by nonbaryonic dark matter
Detailed calculations of the temperature fluctuations in the cosmic background radiation for universes dominated by massive collisionless relics of the big bang are presented. An initially adiabatic
Comment on the "Influence of Cosmological Transitions on the Evolution of Density Perturbations"
A recent paper by Martin and Schwarz [1] argues that the ``standard inflationary result" has been finally proven. The result itself is formulated as: ``the closer the inflationary epoch is to the de
...
1
2
3
4
5
...