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Journal Article

Formation and Evolution of Structure in Loop Cosmology

MPS-Authors

Bojowald,  Martin
Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

Hernandez,  Hector H.
Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

Skirzewski,  Aureliano
Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

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0611685.pdf
(Preprint), 113KB

prl98_031301.pdf
(Publisher version), 96KB

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Citation

Bojowald, M., Hernandez, H. H., Kagan, M., Singh, P., & Skirzewski, A. (2007). Formation and Evolution of Structure in Loop Cosmology. Physical Review Letters, 98: 031301. doi:10.1103/PhysRevLett.98.031301.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0013-48D4-F
Abstract
Inhomogeneous cosmological perturbation equations are derived in loop quantum gravity, taking into account corrections in particular in gravitational parts. This provides a framework for calculating the evolution of modes in structure formation scenarios related to inflationary or bouncing models. Applications here are corrections to the Newton potential and to the evolution of large scale modes which imply non-conservation of curvature perturbations possibly noticeable in a running spectral index. These effects are sensitive to quantization procedures and test the characteristic behavior of correction terms derived from quantum gravity.