4 papers
Measuring the Angular Auto-power Spectrum of Fast Radio Burst Dispersion Measures as a Robust Cosmological Probe and Baryon Tracer
Bao Wang, Zhiyu Lu, Yang Liu +2
Fluctuations in the cosmic electron density are imprinted on the dispersion measures (DMs) of fast radio bursts (FRBs), making DMs a promising probe of cosmology and the spatial di…
A sound horizon independent measurement of from BOSS, DESI and DES Y3
Zhiyu Lu, Théo Simon, Vivian Poulin +1
We present a sound horizon independent measurement of the Hubble parameter using a multiprobe large-scale structure analysis. Removing the dependency on the sound horizon with a re…
New multiprobe analysis of modified gravity and evolving dark energy
Zhiyu Lu, Théo Simon
We study the parametrization of the dark energy (DE) equation of state, with and without the effective field theory of dark energy (EFTofDE) framework to describe t…
Preference for evolving dark energy in light of the galaxy bispectrum
Zhiyu Lu, Théo Simon, Pierre Zhang
We analyse pre-DESI clustering data using a dark energy equation of state parametrised by , finding a preference for evolving dark energy over the co…