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Next-to-leading resummations in cosmological perturbation theory
Next-to-leading resummations cosmological perturbation theory
2010/12/27
One of the nicest results in cosmological perturbation theory is the analytical resummaton of the leading corrections at large momentum, which was obtained by Crocce and Scoccimarro for the propagato...
Consistency of Equations for the Single Scalar Field Case in Second-order Gauge-invariant Cosmological Perturbation Theory
Single Scalar Field Case Cosmological Perturbation Theory
2010/3/18
We derived the second-order perturbations of the Einstein equations and the Klein-Gordon equation for a generic situation in terms of gauge-invariant variables. The consistency of all the equations is...
Second-order Gauge-invariant Cosmological Perturbation Theory: Current Status
Gauge-invariant Current Status
2010/3/17
The current status of the recent developments of the second-order gauge-invariant cosmological perturbation theory is reviewed. To show the essence of this perturbation theory, we concentrate only on ...