Results 1 to 10 of about 1,048 (184)

Cosmic strings, inflation, and gravity waves [PDF]

Physical Review D, 2021
8 pages, Two columns, 12 figures, Version to appear in ...
G Lazarides, Rinku Maji, Qaisar Shafi
exaly   +3 more sources

Constraining cosmic inflation with observations: Prospects for 2030 [PDF]

Monthly Notices of the Royal Astronomical Society, 2023
ABSTRACT The ability to test and constrain theories of cosmic inflation will advance substantially over the next decade. Key data sources include cosmic microwave background (CMB) measurements and observations of the distribution of matter at low-redshift from optical, near-infrared, and 21-cm intensity surveys. A positive detection of a
Benedict Bahr-Kalus, David Parkinson, Richard Easther   +2 more
exaly   +3 more sources

Emergent Spacetime and Cosmic Inflation

Universe
We present a novel background-independent framework for cosmic inflation, starting with a matrix model. In this framework, inflation is portrayed as a dynamic process responsible for the generation of both space and time.
Hyun Seok Yang, Hyun Seok Yang, Yang Hyun Seok   +2 more
exaly   +3 more sources

Cosmic Strings from Thermal Inflation

Universe
Thermal inflation was proposed as a mechanism to dilute the density of cosmological moduli. Thermal inflation is driven by a complex scalar field possessing a large vacuum expectation value and a very flat potential, called a “flaton”.
Robert Brandenberger, Brandenberger Robert   +1 more
exaly   +3 more sources

Quantum simulation of cosmic inflation [PDF]

Physical Review D, 2021
In this paper, we generalize Jordan-Lee-Preskill, an algorithm for simulating flat-space quantum field theories, to 3+1 dimensional inflationary spacetime. The generalized algorithm contains the encoding treatment, the initial state preparation, the inflation process, and the quantum measurement of cosmological observables at late time.
Liu, Junyu, Li, Yue-Zhou
openaire   +3 more sources

What moves the heavens above?

Physics Letters B, 2022
The standard cosmological model (ΛCDM) assumes that everything started in a singular Big Bang out of Cosmic Inflation, a mysterious form of modern Aether (the inflaton).
Enrique Gaztañaga, Benjamin Camacho-Quevedo   +1 more
doaj   +1 more source

Causality and cosmic inflation [PDF]

Physical Review D, 1999
4 pages, 3 figures, RevTeX, expanded and sharpened discussion of result, figures improved, references ...
Vachaspati, Tanmay, Trodden, Mark
openaire   +2 more sources

Cosmic Inflation and Genetic Algorithms

Fortschritte der Physik, 2022
AbstractLarge classes of standard single‐field slow‐roll inflationary models consistent with the required number of e‐folds, the current bounds on the spectral index of scalar perturbations, the tensor‐to‐scalar ratio, and the scale of inflation can be efficiently constructed using genetic algorithms.
Steve A. Abel, Andrei Constantin, Thomas R. Harvey, Andre Lukas   +3 more
openaire   +6 more sources

Running and Running of the Running of the Scalar Spectral Index in Warm Inflation

Universe, 2023
The next generation of cosmological observations are expected to improve the measurements of several quantities connected to the primordial inflation in the early Universe.
Suratna Das, Rudnei O. Ramos
doaj   +1 more source

Topics in Cosmology—Clearly Explained by Means of Simple Examples

Universe, 2022
This is a very comprehensible review of some key issues in modern cosmology. Simple mathematical examples and analogies are used, whenever available. The starting point is the well-known Big Bang cosmology (BBC).
Jaume de Haro, Emilio Elizalde
doaj   +1 more source