A curvature self-interaction of the cosmic gas is shown to mimic a
cosmological constant or other forms of dark energy, such as a rolling tachyon
condensate or a Chaplygin gas. Any given Hubble rate and deceleration parameter
can be traced back to the action of an effective curvature force on the gas
particles. This force self-consistently reacts back on the cosmological
dynamics. The links between an imperfect fluid description, a kinetic
description with effective antifriction forces, and curvature forces, which
represent a non-minimal coupling of gravity to matter, are established.Comment: 14 pages; references added, to appear in New Journal of Physics (v3

Alexander B Balakin

Amendola L

Baccigalupi C

Bean R

Buchert T

Caldwell R R

Carturan D

Chiba T

de Groot S R

de Ritis R

Diego Pav n

Dominik J Schwarz

Ehlers J

Fairbairn M

Faraoni V

Frieman J A

Hanany S

Israel W

Jackiw R

Kerner R

Lucchin F

Madsen M S

Padmanabhan T

Ratra B

Riess A G

Sandvik H B

Schwarz D J

Sen A

Stewart J M

Turner M S

Uzan J-Ph

Wetterich C

Winfried Zimdahl

Zimdahl W

Zlatev I

New Journal of Physics

English

arXiv

A curvature self-interaction of the cosmic gas is shown to mimic a cosmological constant or other forms of dark energy, such as a rolling tachyon condensate or a Chaplygin gas. Any given Hubble rate and deceleration parameter can be traced back to the action of an effective curvature force on the gas particles. This force self-consistently reacts back on the cosmological dynamics. The links between an imperfect fluid description, a kinetic description with effective antifriction forces and curvature forces, which represent a non-minimal coupling of gravity to matter, are established

Balakin A.

Pavón D.

Schwarz D.

Zimdahl W.

Kazan Federal University Digital Repository

New Journal of Physics 2003 vol.5, pages 85.1-85.14Curvature force and dark energyBalakin A., Pavón D., Schwarz D., Zimdahl W.Kazan Federal University, 420008, Kremlevskaya 18, Kazan, RussiaAbstractA curvature self-interaction of the cosmic gas is shown to mimic a cosmological constant orother forms of dark energy, such as a rolling tachyon condensate or a Chaplygin gas. Any givenHubble rate and deceleration parameter  can be traced back to the action of  an effectivecurvature force on the gas particles. This force self-consistently reacts back on the cosmologicaldynamics. The links between an imperfect fluid description, a kinetic description with effectiveantifriction forces and curvature forces, which represent a non-minimal coupling of gravity tomatter, are established.

Curvature force and dark energy

Balakin AB, Pavon D, Schwarz D, Zimdahl W. Curvature force and dark energy. New Journal of Physics. 2003;5:85.A curvature self-interaction of the cosmic gas is shown to mimic a cosmological constant or other forms of dark energy, such as a rolling tachyon condensate or a Chaplygin gas. Any given Hubble rate and deceleration parameter can be traced back to the action of an effective curvature force on the gas particles. This force self-consistently reacts back on the cosmological dynamics. The links between an imperfect fluid description, a kinetic description with effective antifriction forces and curvature forces, which represent a non-minimal coupling of gravity to matter, are established

Balakin, AB

Pavon, D

Schwarz, Dominik 

Zimdahl, W

Publications at Bielefeld University

A curvature self-interaction of the cosmic gas is shown to mimic a cosmological constant or other forms of dark energy, such as a rolling tachyon condensate or a Chaplygin gas. Any given Hubble rate and deceleration parameter can be traced back to the action of an effective curvature force on the gas particles. This force self-consistently reacts back on the cosmological dynamics. The links between an imperfect fluid description, a kinetic description with effective antifriction forces, and curvature forces, which represent a non-minimal coupling of gravity to matter, are established

Curvature force and dark energy

Abstract

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