Does inflation squeeze cosmological perturbations?

• Published in: arXiv.org
• Main Authors: Agullo, Ivan, Bonga, Béatrice, Patricia Ribes Metidieri
• Format: Paper Journal Article
• Language: English
• Published: Ithaca Cornell University Library, arXiv.org 14.03.2022
• Subjects: Ambiguity; Expanding universe theory; Inflation (cosmology); Perturbation; Physics - Cosmology and Nongalactic Astrophysics; Physics - General Relativity and Quantum Cosmology; Physics - High Energy Physics - Theory; Physics - Quantum Physics; Questions; Squeezed states (quantum theory); Time dependence

There seems to exist agreement about the fact that inflation squeezes the quantum state of cosmological perturbations and entangles modes with wavenumbers \(\vec k\) and \(-\vec k\). Paradoxically, this result has been used to justify both the classicality as well as the quantumness of the primordia...