# COSMOLOGICAL PERTURBATIONS: MYTHS AND FACTS

@article{Steinhardt2004COSMOLOGICALPM, title={COSMOLOGICAL PERTURBATIONS: MYTHS AND FACTS}, author={P. Steinhardt}, journal={Modern Physics Letters A}, year={2004}, volume={19}, pages={967-982} }

We discuss (and debunk) ten common myths about cosmological perturbations in inflationary and ekpyrotic/cyclic models and their implications for future observations.

#### 6 Citations

Cosmological perturbations without inflation

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Power spectra always play an important role in the theory of inflation. In particular, the ability to reproduce the galaxy matter power spectrum and the CMB temperature angular power spectrum… Expand

Gravitational Waves and the Early Universe

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Can we detect primordial gravitational waves (i.e. tensor perturbations)? If so, what will they teach us about the early universe? These two questions are central to this two part thesis. First, in… Expand

Gravitational Fluctuations as an Alternative to Inflation

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The ability to reproduce the observed matter power spectrum $P(k)$ to high accuracy is often considered as a triumph of inflation. In this work, we explore an alternative explanation for the power… Expand

Gravitational Fluctuations as an Alternative to Inflation III. Numerical Results

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- 2020

Power spectra play an important role in the theory of inflation, and their ability to reproduce current observational data to high accuracy is often considered a triumph of inflation, largely because… Expand

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