TY - JOUR
T1 - Formation and evolution of structure in loop cosmology
AU - Bojowald, Martin
AU - Kagan, Mikhail
AU - Singh, Parampreet
AU - Hernández, Hector H.
AU - Skirzewski, Aureliano
PY - 2007
Y1 - 2007
N2 - 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 nonconservation 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.
AB - 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 nonconservation 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.
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U2 - 10.1103/PhysRevLett.98.031301
DO - 10.1103/PhysRevLett.98.031301
M3 - Article
C2 - 17358674
AN - SCOPUS:33846376161
SN - 0031-9007
VL - 98
JO - Physical review letters
JF - Physical review letters
IS - 3
M1 - 031301
ER -