10.6k citations · 29.2k across the 47 of their papers we have counts for
49 papers
Revisiting Cosmological Constraints on Supersymmetric SuperWIMPs
Meera Deshpande, Jan Hamann, Dipan Sengupta +3
SuperWIMPs are extremely weakly interacting massive particles that inherit their relic abundance from late decays of frozen-out parent particles. Within supersymmetric models, grav…
Enhancing Bispectrum Estimators for Galaxy Redshift Surveys with Velocities
Julius Wons, Emanuela Dimastrogiovanni, Matteo Fasiello +2
We forecast the ability of bispectrum estimators to constrain primordial non-Gaussianity using future photometric galaxy redshift surveys. A full-sky survey with photometric redshi…
Constraining primordial tensor features with the anisotropies of the Cosmic Microwave Background
Jan Hamann, Ameek Malhotra
It is commonly assumed that the stochastic background of gravitational waves on cosmological scales follows an almost scale-independent power spectrum, as generically predicted by…
Approximate Equivariance SO(3) Needlet Convolution
Kai Yi, Jialin Chen, Yu Guang Wang +4
This paper develops a rotation-invariant needlet convolution for rotation group SO(3) to distill multiscale information of spherical signals. The spherical needlet transform is gen…
Optimising Inflationary Features the Bayesian Way
Jan Hamann, Julius Wons
Modern cosmological data demand modern data analysis techniques. We introduce BayOp, a new likelihood sampling and maximisation method which is based on the Bayesian Optimisation a…
CosmoVAE: Variational Autoencoder for CMB Image Inpainting
Kai Yi, Yi Guo, Yanan Fan +2
Cosmic microwave background radiation (CMB) is critical to the understanding of the early universe and precise estimation of cosmological constants. Due to the contamination of the…