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Carlo is a Monte Carlo simulation framework written in Julia. It provides MPI-parallel scheduling, organized storage of input, checkpoint, and output files, as well as statistical postprocessing. With a minimalist design, it aims to aid the…

Computational Physics · Physics 2025-02-12 Lukas Weber

The estimation of cosmological parameters from precision observables is an important industry with crucial ramifications for particle physics. This article discusses the statistical methods presently used in cosmological data analysis,…

High Energy Physics - Theory · Physics 2009-12-15 Andrew R Liddle

The normal parameters are a non--linear transformation of the cosmological parameters whose likelihood function is very well--approximated by a normal distribution. This transformation serves as an extreme form of data compression allowing…

Astrophysics · Physics 2009-11-07 Mike Chu , Manoj Kaplinghat , Lloyd Knox

We present a self-contained description of everything needed to write a program that calculates the CMB power spectrum for the standard model of cosmology (LCDM). This includes the equations used, assumptions and approximations imposed on…

Astrophysics · Physics 2007-05-23 Petter Callin

We present the AI Cosmologist, an agentic system designed to automate cosmological/astronomical data analysis and machine learning research workflows. This implements a complete pipeline from idea generation to experimental evaluation and…

Instrumentation and Methods for Astrophysics · Physics 2025-04-07 Adam Moss

This is a review article for The Review of Particle Physics 2006 (aka the Particle Data Book). It forms a compact review of knowledge of the cosmological parameters as at May 2006. Topics included are Parametrizing the Universe; Extensions…

Astrophysics · Physics 2007-05-23 Ofer Lahav , Andrew R Liddle

We validate the COVMOS method introduced in Baratta et al. (2019) allowing for the fast simulation of catalogues of different cosmological field tracers (e.g. dark matter particles, halos, galaxies, etc.). The power spectrum and one-point…

Cosmology and Nongalactic Astrophysics · Physics 2023-04-26 Philippe Baratta , Julien Bel , Sylvain Gouyou Beauchamps , Carmelita Carbone

KMCLib is a general framework for lattice kinetic Monte Carlo (KMC) simulations. The program can handle simulations of the diffusion and reaction of millions of particles in one, two, or three dimensions, and is designed to be easily…

Computational Physics · Physics 2014-05-07 Mikael Leetmaa , Natalia V. Skorodumova

We present a Monte-Carlo package for simulation of high-redshift supernova data, SNOC. Optical and near-infrared photons from supernovae are ray-traced over cosmological distances from the simulated host galaxy to the observer at Earth. The…

Astrophysics · Physics 2009-11-07 A. Goobar , E. Mortsell , R. Amanullah , M. Goliath , L. Bergstrom , T. Dahlen

We present a universal parameter-free quantum Monte Carlo (QMC) algorithm designed to simulate arbitrary spin-$1/2$ Hamiltonians. To ensure the convergence of the Markov chain to equilibrium for every conceivable case, we devise a clear and…

Computational Physics · Physics 2024-03-15 Lev Barash , Arman Babakhani , Itay Hen

PyPartMC is a Pythonic interface to PartMC, a stochastic, particle-resolved aerosol model implemented in Fortran. Both PyPartMC and PartMC are free, libre, and open-source. PyPartMC reduces the number of steps and mitigates the effort…

Mathematical Software · Computer Science 2024-01-17 Zachary D'Aquino , Sylwester Arabas , Jeffrey Curtis , Akshunna Vaishnav , Nicole Riemer , Matthew West

We present a cross-language C++/Python program for simulations of quantum mechanical systems with the use of Quantum Monte Carlo (QMC) methods. We describe a system for which to apply QMC, the algorithms of variational Monte Carlo and…

Computational Physics · Physics 2009-11-13 J. K. Nilsen

We describe the first major public data release from cosmological simulations carried out with Argonne's HACC code. This initial release covers a range of datasets from large gravity-only simulations. The data products include halo…

Cosmic Reionization On Computers (CROC) is a long-term program of numerical simulations of cosmic reionization. Its goal is to model fully self-consistently (albeit not necessarily from the first principles) all relevant physics, from…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-19 Nickolay Y. Gnedin

The Core Cosmology Library (CCL) provides routines to compute basic cosmological observables to a high degree of accuracy, which have been verified with an extensive suite of validation tests. Predictions are provided for many cosmological…

This article describes a data center hosting a web portal for accessing and sharing the output of large, cosmological, hydro-dynamical simulations with a broad scientific community. It also allows users to receive related scientific data…

Instrumentation and Methods for Astrophysics · Physics 2018-10-22 Antonio Ragagnin , Klaus Dolag , Veronica Biffi , Marionne Cadolle Bel , Nicolay J. Hammer , Aliaksei Krukau , Margarita Petkova , Daniel Steinborn

Quasi-Monte Carlo (QMC) methods have developed over several decades. With the explosion in computational science, there is a need for great software that implements QMC algorithms. We summarize the QMC software that has been developed to…

Numerical Analysis · Mathematics 2023-11-13 Sou-Cheng T. Choi , Yuhan Ding , Fred J. Hickernell , Jagadeeswaran Rathinavel , Aleksei G. Sorokin

Markov Chain Monte Carlo methods have revolutionised mathematical computation and enabled statistical inference within many previously intractable models. In this context, Hamiltonian dynamics have been proposed as an efficient way of…

Computation · Statistics 2017-05-09 Alessandro Barp , Francois-Xavier Briol , Anthony D. Kennedy , Mark Girolami

We present a C++ software package called PhaseTracer for mapping out cosmological phases, and potential transitions between them, for Standard Model extensions with any number of scalar fields. PhaseTracer traces the minima of effective…

High Energy Physics - Phenomenology · Physics 2020-06-30 Peter Athron , Csaba Balazs , Andrew Fowlie , Yang Zhang

Hamiltonian Monte Carlo (HMC) is a powerful tool for Bayesian computation. In comparison with the traditional Metropolis-Hastings algorithm, HMC offers greater computational efficiency, especially in higher dimensional or more complex…

Computation · Statistics 2020-12-21 Samuel Thomas , Wanzhu Tu
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