Loop quantum cosmology and phenomenology

Martin Bojowald

doi:10.1063/1.3473880

Loop quantum cosmology and phenomenology

Martin Bojowald

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

1 Scopus citations

Abstract

Loop quantum cosmology has provided a large set of insights about the dynamics of loop quantum gravity, based on symmetric (sometimes exactly solvable) model systems combined with advanced perturbation techniques around them. Starting with an exactly solvable, harmonic system (which happens to illustrate singularity resolution by providing examples for bouncing solutions) a systematic perturbation theory is set up. As a key challenge, it remains to formulate general inhomogeneities in a fully consistent way, respecting space-time covariance. Only if this is achieved can loop quantum gravity provide a valid proposal for a modified-gravity theory with quantum corrections, and by this gain access to observational constraints. Recent progress in this direction is described.

Original language	English (US)
Title of host publication	Gravitational Physics
Subtitle of host publication	Testing Gravity from Submillimeter to Cosmic Scale - Proceedings of the VIII Mexican School on Gravitation and Mathematical Physics
Pages	66-80
Number of pages	15
DOIs	https://doi.org/10.1063/1.3473880
State	Published - Aug 23 2010
Event	8th Mexican School on Gravitation and Mathematical Physics - Playa del Carmen, Quintana Roo, Mexico Duration: Dec 6 2009 → Dec 12 2009

Publication series

Name	AIP Conference Proceedings
Volume	1256
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Other

Other	8th Mexican School on Gravitation and Mathematical Physics
Country/Territory	Mexico
City	Playa del Carmen, Quintana Roo
Period	12/6/09 → 12/12/09

All Science Journal Classification (ASJC) codes

Ecology, Evolution, Behavior and Systematics
Ecology
Plant Science
General Physics and Astronomy
Nature and Landscape Conservation

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10.1063/1.3473880

Cite this

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title = "Loop quantum cosmology and phenomenology",

abstract = "Loop quantum cosmology has provided a large set of insights about the dynamics of loop quantum gravity, based on symmetric (sometimes exactly solvable) model systems combined with advanced perturbation techniques around them. Starting with an exactly solvable, harmonic system (which happens to illustrate singularity resolution by providing examples for bouncing solutions) a systematic perturbation theory is set up. As a key challenge, it remains to formulate general inhomogeneities in a fully consistent way, respecting space-time covariance. Only if this is achieved can loop quantum gravity provide a valid proposal for a modified-gravity theory with quantum corrections, and by this gain access to observational constraints. Recent progress in this direction is described.",

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language = "English (US)",

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Bojowald, M 2010, Loop quantum cosmology and phenomenology. in Gravitational Physics: Testing Gravity from Submillimeter to Cosmic Scale - Proceedings of the VIII Mexican School on Gravitation and Mathematical Physics. AIP Conference Proceedings, vol. 1256, pp. 66-80, 8th Mexican School on Gravitation and Mathematical Physics, Playa del Carmen, Quintana Roo, Mexico, 12/6/09. https://doi.org/10.1063/1.3473880

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AB - Loop quantum cosmology has provided a large set of insights about the dynamics of loop quantum gravity, based on symmetric (sometimes exactly solvable) model systems combined with advanced perturbation techniques around them. Starting with an exactly solvable, harmonic system (which happens to illustrate singularity resolution by providing examples for bouncing solutions) a systematic perturbation theory is set up. As a key challenge, it remains to formulate general inhomogeneities in a fully consistent way, respecting space-time covariance. Only if this is achieved can loop quantum gravity provide a valid proposal for a modified-gravity theory with quantum corrections, and by this gain access to observational constraints. Recent progress in this direction is described.

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Loop quantum cosmology and phenomenology

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