359 citations · 4.5k across the 87 of their papers we have counts for
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Rotation of the cosmic microwave background polarization from weak gravitational lensing
Liang Dai
When a cosmic microwave background (CMB) photon travels from the surface of last scatter through spacetime metric perturbations, the polarization vector may rotate about its direct…
The effect of aberration on partial-sky measurements of the cosmic microwave background temperature power spectrum
Donghui Jeong, Jens Chluba, Liang Dai +2
Our motion relative to the cosmic-microwave-background (CMB) rest frame deflects light rays giving rise to shifts as large as L -> L(1+beta), where beta=0.00123 is our velocity (in…
Multiple scattering Sunyaev-Zeldovich signal II: relativistic effects
Jens Chluba, Liang Dai
We study the multiple scattering Sunyaev-Zeldovich (SZ) signature, extending our previous analysis to high-temperature clusters. We consistently treat the anisotropy of the ambient…
Multiple scattering Sunyaev-Zeldovich signal I: lowest order effect
Jens Chluba, Liang Dai, Marc Kamionkowski
Future high-resolution, high-sensitivity Sunyaev-Zeldovich (SZ) observations of individual clusters will allow us to study the dynamical state of the intra cluster medium (ICM). To…
Anisotropic imprint of long-wavelength tensor perturbations on cosmic structure
Liang Dai, Donghui Jeong, Marc Kamionkowski
Inflationary models predict a correlation between primordial density perturbations (scalar metric perturbations) and gravitational waves (tensor metric perturbations) in the form o…
The Pesky Power Asymmetry
Liang Dai, Donghui Jeong, Marc Kamionkowski +1
Physical models for the hemispherical power asymmetry in the cosmic microwave background (CMB) reported by the Planck Collaboration must satisfy CMB constraints to the homogeneity…
Seeking Inflation Fossils in the Cosmic Microwave Background
Liang Dai, Donghui Jeong, Marc Kamionkowski
If during inflation the inflaton couples to a "fossil" field, some new scalar, vector, or tensor field, it typically induces a scalar-scalar-fossil bispectrum. Even if the fossil f…