Cosmological Number Counts in Einstein and Jordan frames

Abstract

Even though we know that physical observations are frame independent, the frame dependence of cosmological perturbations is relatively subtle and has led to confusion in the past. In this paper we show that while the (unobservable) matter power spectrum is frame dependent, the observable number counts are not. We shall also determine how the frame dependence of the power spectrum depends on scale.

arXiv comment18 pages, 1 figure

References in corpus (6)

• What galaxy surveys really measure
• Einstein and Jordan frames reconciled: a frame-invariant approach to scalar-tensor cosmology
• Conformal-Frame (In)dependence of Cosmological Observations in Scalar-Tensor Theory
• Cosmological Parameter Estimation with Large Scale Structure Observations
• Conformal equivalence in classical gravity: the example of "veiled" General Relativity
• Gravity and Scalar Fields

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• K-mouflage at high $k$: extending the reach of $\text{Hi-COLA}$
• Lensing convergence and anisotropic dark energy in galaxy redshift surveys
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