Quantum Effects In Cosmology
L.P. Grishchuk ( Physics Department, Washington University, St. Louis,, U.S.A.)
TL;DR
This paper reviews the role of quantum effects in cosmology, discussing phenomena like graviton creation, quantum states, and tunneling, to deepen understanding of the universe's early moments and inflation.
Contribution
It provides a comprehensive overview of quantum phenomena in cosmology, integrating theoretical models and quantum effects during inflation.
Findings
Quantum fluctuations lead to graviton creation during inflation.
Squeezed quantum states influence primordial density perturbations.
Quantum tunneling from 'nothing' affects universe's initial conditions.
Abstract
Contents: Introduction. The Present State of the Universe. What Can We Expect From a Complete Cosmological Theory? An Overview of Quantum Effects in Cosmology. Parametric (Superadiabatic) Amplification of Classical Waves. Graviton Creation in the Inflationary Universe. Quantum States of a Harmonic Oscillator. Squeezed Quantum States of Relic Gravitons and Primordial Density Perturbations. Quantum Cosmology, Minisuperspace Models and Inflation. From the Space of Classical Solutions to the Space of Wave Functions. On the Probability of Quantum Tunneling From "Nothing". Duration of Inflation
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Taxonomy
TopicsRelativity and Gravitational Theory · Earth Systems and Cosmic Evolution · Cosmology and Gravitation Theories