# 2019 Meeting of the Division of Particles & Fields of the American Physical Society

July 29, 2019 to August 2, 2019
Northeastern University
US/Eastern timezone

## Inflatinary Cosmology as a Precision Test of Quantum Mechanics

Jul 30, 2019, 2:36 PM
18m
West Village G 106 (Northeastern University)

### West Village G 106

#### Northeastern University

Oral Presentation Cosmology & Dark Energy

### Speaker

Dr Carl Rosenzweig (Syracuse University)

### Description

Inflation predicts that quantum fluctuations determine the large scale structure of the Universe. This raises the striking possibility that quantum mechanics, developed to describe nature at short distances, can be tested by studying nature at its most immense -- cosmology. By fully accepting the inflationary paradigm we realize this possibility. A nonlinear generalization of quantum mechanics modifies predictions for the cosmological power spectrum. Observational cosmology is sufficiently precise to place a stringent limit, $b\leq 3\times 10^{-34}$ eV, on the size of the nonlinear term.

### Primary authors

Dr Carl Rosenzweig (Syracuse University) Dr Julian Georg (Syracuse University)