We show that the string gas — a perfect fluid with the equation of state p = -1/3 rho possesses rather interesting properties. In Friedmann universes its presence can change the observable topology of the space; in the spherically symmetric spacetimes it produces rather bizzare geometries and in a way its influence on the rotation curves mimics the dark matter effects.
A.Y. Kamenchtchik, I.M. Khalatnikov (2012). Some properties of the "string gas" with the equation of state p =-1/3 rho. INTERNATIONAL JOURNAL OF MODERN PHYSICS D, 21, 1250004-1250004 [10.1142/S0218271812500046].
Some properties of the "string gas" with the equation of state p =-1/3 rho
KAMENCHTCHIK, ALEXANDR;
2012
Abstract
We show that the string gas — a perfect fluid with the equation of state p = -1/3 rho possesses rather interesting properties. In Friedmann universes its presence can change the observable topology of the space; in the spherically symmetric spacetimes it produces rather bizzare geometries and in a way its influence on the rotation curves mimics the dark matter effects.File in questo prodotto:
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