A Direct Probe of the Evolutionary History of the Primordial Universe
arXiv:1608.01299 · doi:10.1007/s11433-016-0278-8
Abstract
Since Hubble and Lamaitre's discovery of the expanding universe using galaxies till the recent discovery of the accelerating universe using standard candles, direct measurements of the evolution of the scale factor of the universe a(t) have played central roles in establishing the standard model of cosmology. In this letter, we show that such a measurement may be extended to the primordial universe using massive fields as standard clocks, providing a direct evidence for the scenario responsible for the Big Bang. This is a short and non-technical introduction to the idea of classical and quantum primordial standard clocks.
10 pages; a short and non-technical introduction to primordial standard clocks, to appear in Science China
References in corpus (6)
- Generation and Characterization of Large Non-Gaussianities in Single Field Inflation
- Cosmological Collider Physics
- Folded Resonant Non-Gaussianity in General Single Field Inflation
- Models of the Primordial Standard Clock
- Standard Clock in Primordial Density Perturbations and Cosmic Microwave Background
- Primordial Features as Evidence for Inflation
Cited by in corpus (7)
- On the Effective Field Theory for Quasi-Single Field Inflation
- Cosmic Decoherence: Massive Fields
- Differentiating G-inflation from String Gas Cosmology using the Effective Field Theory Approach
- Fingerprints of a Non-Inflationary Universe from Massive Fields
- Quantum quenches during inflation
- Schwinger-Keldysh mechanism in extended quasi single field inflation
- Non-linear effects in early Universe cosmology