On the Adiabatic Expansion of the Visible Space in a Higher-dimensional Cosmology

 
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1997 (EN)
On the Adiabatic Expansion of the Visible Space in a Higher-dimensional Cosmology

Papadopoulos, Dimitrios
Kleidis, Kostas

In the context of higher-dimensional cosmologies, with isotropic visible and internal space and multi-perfect fluid matter, we study the conditions under which adiabatic expansion of the visible external space is possible, when a time-dependent internal space is present. The analysis is based on a reinterpretation of the four-dimensional stress-energy tensor in the presence of the extra dimensions. This modifies the usual adiabatic energy conservation laws for the visible universe, leading to a new type of cosmological evolution which includes large-scale entropy production in four dimensions

Article / Άρθρο
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Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης (EL)
Aristotle University of Thessaloniki (EN)

1997
2009-06-29T16:58:46Z


Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης, Σχολή Θετικών Επιστημών, Τμήμα Φυσικής

General Relativity and Gravitation, vol.Vol. 29 no.3 [1997] p.275-290 [Published Version]
urn:ISSN:00017701

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