TY - JOUR
T1 - Observational constraints on loop quantum cosmology
AU - Bojowald, Martin
AU - Calcagni, Gianluca
AU - Tsujikawa, Shinji
PY - 2011/11/15
Y1 - 2011/11/15
N2 - In the inflationary scenario of loop quantum cosmology in the presence of inverse-volume corrections, we give analytic formulas for the power spectra of scalar and tensor perturbations convenient to compare with observations. Since inverse-volume corrections can provide strong contributions to the running spectral indices, inclusion of terms higher than the second-order runnings in the power spectra is crucially important. Using the recent data of cosmic microwave background and other cosmological experiments, we place bounds on the quantum corrections.
AB - In the inflationary scenario of loop quantum cosmology in the presence of inverse-volume corrections, we give analytic formulas for the power spectra of scalar and tensor perturbations convenient to compare with observations. Since inverse-volume corrections can provide strong contributions to the running spectral indices, inclusion of terms higher than the second-order runnings in the power spectra is crucially important. Using the recent data of cosmic microwave background and other cosmological experiments, we place bounds on the quantum corrections.
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U2 - 10.1103/PhysRevLett.107.211302
DO - 10.1103/PhysRevLett.107.211302
M3 - Article
C2 - 22181869
AN - SCOPUS:81455159149
SN - 0031-9007
VL - 107
JO - Physical Review Letters
JF - Physical Review Letters
IS - 21
M1 - 211302
ER -