Zobrazeno 1 - 10
of 178
pro vyhledávání: '"Chen, Joe P."'
Velocity dispersion of the massive neutrinos presents a daunting challenge for non-linear cosmological perturbation theory. We consider the neutrino population as a collection of non-linear fluids, each with uniform initial momentum, through an exten
Externí odkaz:
http://arxiv.org/abs/2210.16020
Simulation of the cosmic clustering of massive neutrinos is a daunting task, due both to their large velocity dispersion and to their weak clustering power becoming swamped by Poisson shot noise. We present a new approach, the multi-fluid hybrid-neut
Externí odkaz:
http://arxiv.org/abs/2210.16012
We consider invisible neutrino decay $\nu_H \to \nu_l + \phi$ in the ultra-relativistic limit and compute the neutrino anisotropy loss rate relevant for the cosmic microwave background (CMB) anisotropies. Improving on our previous work which assumed
Externí odkaz:
http://arxiv.org/abs/2203.09075
Chinese couplet is a special form of poetry composed of complex syntax with ancient Chinese language. Due to the complexity of semantic and grammatical rules, creation of a suitable couplet is a formidable challenge. This paper presents a transformer
Externí odkaz:
http://arxiv.org/abs/2112.01707
Autor:
Chen, Joe P.
Consider symmetric simple exclusion processes, with or without Glauber dynamics on the boundary set, on a sequence of connected unweighted graphs $G_N=(V_N,E_N)$ which converge geometrically and spectrally to a compact connected metric measure space.
Externí odkaz:
http://arxiv.org/abs/2106.03685
Publikováno v:
JCAP04(2021)078
We present in this work a novel and yet extremely simple method for incorporating the effects of massive neutrinos in cosmological $N$-body simulations. This so-called "SuperEasy linear response" approach is based upon analytical solutions to the col
Externí odkaz:
http://arxiv.org/abs/2011.12504
Publikováno v:
JCAP03(2021)065
A significant challenge for modelling the massive neutrino as a hot dark matter is its large velocity dispersion. In this work, we investigate and implement a multi-fluid perturbation theory that treats the cosmic neutrino population as a collection
Externí odkaz:
http://arxiv.org/abs/2011.12503
We prove a general theorem on cutoffs for symmetric simple exclusion processes on graphs with open boundaries, under the natural assumption that the graphs converge geometrically and spectrally to a compact metric measure space with Dirichlet boundar
Externí odkaz:
http://arxiv.org/abs/2011.08718
Autor:
Barenboim, Gabriela, Chen, Joe Zhiyu, Hannestad, Steen, Oldengott, Isabel M., Tram, Thomas, Wong, Yvonne Y. Y.
We revisit the topic of invisible neutrino decay in the precision cosmological context, via a first-principles approach to understanding the cosmic microwave background and large-scale structure phenomenology of such a non-standard physics scenario.
Externí odkaz:
http://arxiv.org/abs/2011.01502
Autor:
Chen, Joe P., Marinho, Rodrigo
We prove a general theorem on cutoffs for symmetric exclusion and interchange processes on finite graphs $G_N=(V_N,E_N)$, under the assumption that either the graphs converge geometrically and spectrally to a compact metric measure space, or they are
Externí odkaz:
http://arxiv.org/abs/2010.16227