Numerical simulations of the decay of primordial magnetic turbulence - INSPIRE

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Numerical simulations of the decay of primordial magnetic turbulence

Tina Kahniashvili
(
)
,
Axel Brandenburg
(
- Nordita and
- Stockholm U.
)
,
Alexander G. Tevzadze
(
)
,
Bharat Ratra
(
- Kansas State U.
)

Apr, 2010

10 pages

Published in:

Phys.Rev.D 81 (2010) 123002

e-Print:

1004.3084 [astro-ph.CO]

DOI:

10.1103/PhysRevD.81.123002

Report number:

NORDITA-PREPRINT-NORDITA-2010-20

View in:

ADS Abstract Service

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Abstract: (arXiv)

We perform direct numerical simulations of forced and freely decaying 3D magnetohydrodynamic turbulence in order to model magnetic field evolution during cosmological phase transitions in the early Universe. Our approach assumes the existence of a magnetic field generated either by a process during inflation or shortly thereafter, or by bubble collisions during a phase transition. We show that the final configuration of the magnetic field depends on the initial conditions, while the velocity field is nearly independent of initial conditions.

98.70.Vc
98.80.-k
bubble: scattering
magnetic field
numerical calculations
critical phenomena
turbulence: magnetic
inflation
velocity
numerical methods

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