LANL: Numerical Simulations Shed New Light on Early Universe

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LANL: Numerical Simulations Shed New Light on Early Universe

Post by bystander » Sat Apr 23, 2016 5:53 pm

Numerical Simulations Shed New Light on Early Universe
Los Alamos National Laboratory | 2016 Apr 21

BURST code probes first minutes after the Big Bang for fundamental insights

The code simulates conditions during the first few minutes of cosmological evolution to model the role of neutrinos, nuclei and other particles in shaping the early universe.

[img3="Los Alamos scientists developed the BURST computer code to predict—to unprecedented precision—the amounts of light nuclei synthesized in the Big Bang. (Source: LANL)"]https://c2.staticflickr.com/2/1538/2594 ... f53f_b.jpg[/img3][hr][/hr]
Innovative multidisciplinary research in nuclear and particle physics and cosmology has led to the development of a new, more accurate computer code to study the early universe. The code simulates conditions during the first few minutes of cosmological evolution to model the role of neutrinos, nuclei and other particles in shaping the early universe.

Anticipating precision cosmological data from the next generation of “Extremely Large” telescopes, the BURST code developed by scientists at Los Alamos National Laboratory in collaboration with colleagues at University of California San Diego, “promises to open up new avenues for investigating existing puzzles of cosmology,” says Los Alamos physicist Mark Paris of the Nuclear and Particle, Astrophysics and Cosmology group. “These include the nature and origin of visible matter and the properties of the more mysterious ‘dark matter’ and ‘dark radiation.’ ”

“The BURST computer code allows physicists to exploit the early universe as a laboratory to study the effect of fundamental particles present in the early universe,” Paris explains. “Our new work in neutrino cosmology allows the study of the microscopic, quantum nature of fundamental particles—the basic, subatomic building blocks of nature—by simulating the universe at its largest, cosmological scale,” said Paris. ...

Neutrino Energy Transport in Weak Decoupling and Big Bang Nucleosynthesis - E. Grohs et al
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