努力。[1]宇宙大尺度结构有效场论的快速可微仿真器

IF 5.9 2区物理与天体物理 Q1 ASTRONOMY & ASTROPHYSICS

Journal of Cosmology and Astroparticle Physics Pub Date : 2025-09-15 DOI:10.1088/1475-7516/2025/09/044

Marco Bonici, Guido D'Amico, Julien Bel and Carmelita Carbone

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引用次数: 0

摘要

我们提出了有效场论替代努力的正式发布。基于大尺度结构有效场理论（EFTofLSS）的新型高效仿真器。该工具结合了最先进的数值方法和巧妙的预处理策略，在不牺牲精度的情况下实现卓越的计算性能。为了验证仿真器的可靠性，我们比较了使用Effort采样的贝叶斯后验。使用广泛使用的pybird代码，通过Metropolis-Hastings采样器进行采样。在大容量的模拟集和BOSS数据集上，比较证实了非常好的一致性，偏差与蒙特卡罗噪声兼容。展望未来，努力。Jl准备分析下一代宇宙学数据集，并支持与互补工具的联合分析。

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Effort.jl: a fast and differentiable emulator for the Effective Field Theory of the Large Scale Structure of the Universe

We present the official release of the EFfective Field theORy surrogaTe (Effort.jl), a novel and efficient emulator designed for the Effective Field Theory of Large-Scale Structure (EFTofLSS). This tool combines state-of-the-art numerical methods and clever preprocessing strategies to achieve exceptional computational performance without sacrificing accuracy. To validate the emulator reliability, we compare Bayesian posteriors sampled using Effort.jl via Hamiltonian MonteCarlo methods to the ones sampled using the widely-used pybird code, via the Metropolis-Hastings sampler. On a large-volume set of simulations, and on the BOSS dataset, the comparison confirms excellent agreement, with deviations compatible with MonteCarlo noise. Looking ahead, Effort.jl is poised to analyze next-generation cosmological datasets and to support joint analyses with complementary tools.

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来源期刊

Journal of Cosmology and Astroparticle Physics 地学天文-天文与天体物理

CiteScore

10.20

自引率

23.40%

发文量

632

审稿时长

1 months

期刊介绍： Journal of Cosmology and Astroparticle Physics (JCAP) encompasses theoretical, observational and experimental areas as well as computation and simulation. The journal covers the latest developments in the theory of all fundamental interactions and their cosmological implications (e.g. M-theory and cosmology, brane cosmology). JCAP''s coverage also includes topics such as formation, dynamics and clustering of galaxies, pre-galactic star formation, x-ray astronomy, radio astronomy, gravitational lensing, active galactic nuclei, intergalactic and interstellar matter.