### Abstract

Braneworld scenarios are motivated by string/M-theory and can be characterized by the way in which they modify the conventional Friedmann equations of Einstein gravity. An alternative approach to quantum gravity, however, is the loop quantum cosmology program. In the semi-classical limit, the cosmic dynamics in this scenario can also be described by a set of modified Friedmann equations. We demonstrate that a dynamical correspondence cm be established between these two paradigms at the level of the effective field equations. As concrete examples of this correspondence, we illustrate the relationships between different cosmological backgrounds representing scaling solutions.

Original language | English |
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Title of host publication | Proceedings of the 15th Workshop on General Relativity and Gravitation in Japan, JGRG 2005 |

Pages | 92-95 |

Number of pages | 4 |

Publication status | Published - 2005 |

Event | 15th Workshop on General Relativity and Gravitation in Japan, JGRG 2005 - Tokyo Duration: 2005 Nov 28 → 2005 Dec 2 |

### Other

Other | 15th Workshop on General Relativity and Gravitation in Japan, JGRG 2005 |
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City | Tokyo |

Period | 05/11/28 → 05/12/2 |

### Fingerprint

### ASJC Scopus subject areas

- Atomic and Molecular Physics, and Optics

### Cite this

*Proceedings of the 15th Workshop on General Relativity and Gravitation in Japan, JGRG 2005*(pp. 92-95)

**Correspondence between loop and brane cosmology.** / Mizuno, Shuntaro; Copeland, Edmund J.; Lidsey, James E.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

*Proceedings of the 15th Workshop on General Relativity and Gravitation in Japan, JGRG 2005.*pp. 92-95, 15th Workshop on General Relativity and Gravitation in Japan, JGRG 2005, Tokyo, 05/11/28.

}

TY - GEN

T1 - Correspondence between loop and brane cosmology

AU - Mizuno, Shuntaro

AU - Copeland, Edmund J.

AU - Lidsey, James E.

PY - 2005

Y1 - 2005

N2 - Braneworld scenarios are motivated by string/M-theory and can be characterized by the way in which they modify the conventional Friedmann equations of Einstein gravity. An alternative approach to quantum gravity, however, is the loop quantum cosmology program. In the semi-classical limit, the cosmic dynamics in this scenario can also be described by a set of modified Friedmann equations. We demonstrate that a dynamical correspondence cm be established between these two paradigms at the level of the effective field equations. As concrete examples of this correspondence, we illustrate the relationships between different cosmological backgrounds representing scaling solutions.

AB - Braneworld scenarios are motivated by string/M-theory and can be characterized by the way in which they modify the conventional Friedmann equations of Einstein gravity. An alternative approach to quantum gravity, however, is the loop quantum cosmology program. In the semi-classical limit, the cosmic dynamics in this scenario can also be described by a set of modified Friedmann equations. We demonstrate that a dynamical correspondence cm be established between these two paradigms at the level of the effective field equations. As concrete examples of this correspondence, we illustrate the relationships between different cosmological backgrounds representing scaling solutions.

UR - http://www.scopus.com/inward/record.url?scp=84887490807&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84887490807&partnerID=8YFLogxK

M3 - Conference contribution

SP - 92

EP - 95

BT - Proceedings of the 15th Workshop on General Relativity and Gravitation in Japan, JGRG 2005

ER -