English
Related papers

Related papers: EFTCAMB/EFTCosmoMC: Numerical Notes v3.0

200 papers

We implement the effective field theory (EFT) approach to dark energy and modified gravity in the public Einstein-Boltzmann solver CAMB. The resulting code, which we dub EFTCAMB, is a powerful and versatile tool that can be used for several…

Cosmology and Nongalactic Astrophysics · Physics 2014-05-28 Bin Hu , Marco Raveri , Noemi Frusciante , Alessandra Silvestri

We introduce EFTCAMB/EFTCosmoMC as publicly available patches to the commonly used CAMB/CosmoMC codes. We briefly describe the structure of the codes, their applicability and main features. To illustrate the use of these patches, we obtain…

Cosmology and Nongalactic Astrophysics · Physics 2014-11-20 Marco Raveri , Bin Hu , Noemi Frusciante , Alessandra Silvestri

We introduce a patch to the commonly used public codes CAMB and CosmoMC that allows the user to implement a general modification of the equations describing the growth of cosmological perturbations, while preserving the covariant…

Cosmology and Nongalactic Astrophysics · Physics 2011-08-09 Alireza Hojjati , Levon Pogosian , Gong-Bo Zhao

We present $\mathcal{H}\mathtt{-EFTCAMB}$, the official successor to $\mathtt{EFTCAMB}$. The original $\mathtt{EFTCAMB}$ is designed as a consistent and numerically stable implementation of the effective field theory (EFT) of dark energy in…

General Relativity and Quantum Cosmology · Physics 2026-03-30 Gen Ye , Shijie Lin , Jiaming Pan , Dani de Boe , Stan Verhoeve , Marco Raveri , Bin Hu , Noemi Frusciante , Alessandra Silvestri

We present a generalization of the effective field theory (EFT) formalism for dark energy and modified gravity models to include operators with higher order spatial derivatives. This allows the extension of the EFT framework to a wider…

General Relativity and Quantum Cosmology · Physics 2016-08-04 Noemi Frusciante , Georgios Papadomanolakis , Alessandra Silvestri

We present a major upgrade of MGCAMB, a patch for the Einstein-Boltzmann solver CAMB used for phenomenological tests of general relativity against cosmological datasets. This new version is compatible with the latest CosmoMC code and…

Cosmology and Nongalactic Astrophysics · Physics 2019-05-08 Alex Zucca , Levon Pogosian , Alessandra Silvestri , Gong-Bo Zhao

We present a formalism for the numerical implementation of general theories of dark energy, combining the computational simplicity of the equation of state for perturbations approach with the generality of the effective field theory…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-17 Jolyon K. Bloomfield , Jonathan A. Pearson

The Effective Field Theory (EFT) approach is widely used in the search for possible deviations from the predictions of the Standard Model. Such an approximation of possible BSM physics is valid up to a certain levels of energy scale and…

High Energy Physics - Phenomenology · Physics 2020-11-24 E. E. Boos , V. E. Bunichev , L. V. Dudko , M. A. Perfilov , G. A. Vorotnikov

The effective field theory (EFT) of dark energy provides a model-independent framework for studying cosmology within scalar-tensor theories. In this work, we explore how the time evolution of the cosmological background, inferred from…

Cosmology and Nongalactic Astrophysics · Physics 2026-04-15 Fumiya Okamatsu , Kazufumi Takahashi

We review recent advances in the capabilities of the open source ab initio Quantum Monte Carlo (QMC) package QMCPACK and the workflow tool Nexus used for greater efficiency and reproducibility. The auxiliary field QMC (AFQMC) implementation…

We present a new version of MGCAMB, a patch for the Einstein-Boltzmann solver CAMB for cosmological tests of gravity. New features include a new cubic-spline parameterization allowing for a simultaneous reconstruction of $\mu$, $\Sigma$ and…

Cosmology and Nongalactic Astrophysics · Physics 2023-08-21 Zhuangfei Wang , Seyed Hamidreza Mirpoorian , Levon Pogosian , Alessandra Silvestri , Gong-Bo Zhao

We study the cosmic microwave background (CMB) radiation in the unified description of the effective field theory (EFT) of dark energy that accommodates both scalar-tensor and vector-tensor theories. The boundaries of different classes of…

Cosmology and Nongalactic Astrophysics · Physics 2024-05-08 Katsuki Aoki , Mohammad Ali Gorji , Takashi Hiramatsu , Shinji Mukohyama , Masroor C. Pookkillath , Kazufumi Takahashi

CosmicFish is a publicly available library to perform Fisher matrix forecast for several cosmological observations. With the present implementation notes we provide a guide to the physical and technical details of the library. We reproduce…

Cosmology and Nongalactic Astrophysics · Physics 2016-06-21 Marco Raveri , Matteo Martinelli , Gongbo Zhao , Yuting Wang

Modified Growth with {\tt CAMB} ({\tt MGCAMB}) is a patch for the Einstein-Boltzmann solver {\tt CAMB} for cosmological tests of gravity. Until now, {\tt MGCAMB} was limited to scales well-described by linear perturbation theory. In this…

Cosmology and Nongalactic Astrophysics · Physics 2024-10-18 Zhuangfei Wang , Daniela Saadeh , Kazuya Koyama , Levon Pogosian , Benjamin Bose , Lanyang Yi , Gong-Bo Zhao

This note gives an overview of the tools for the precision matching of ultraviolet theories to the Standard Model effective field theory (SMEFT) at the tree level and one loop. Several semi- and fully automated codes are presented, as well…

In this work we present a brief discussion about modified and extended cosmological models using current observational tests. We show that according to these astrophysical samples based in late universe measurements, theories like $f(R)$…

General Relativity and Quantum Cosmology · Physics 2021-01-25 Celia Escamilla-Rivera

The effective field theory (EFT) of dark energy relies on three functions of time to describe the background dynamics. The viability of these functions is investigated here by means of a thorough dynamical analysis. While the system is…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-17 Noemi Frusciante , Marco Raveri , Alessandra Silvestri

In absence of any distinct evidence of new physics phenomena at the LHC, an increasing number of experimental studies aim at probing anomalous effects with an effective field theory (EFT) that represents a comprehensive approach for…

High Energy Physics - Experiment · Physics 2019-10-11 Kirill Skovpen

We present a numerical analysis of the cosmological evolution of scalar field dark matter (SFDM) in the Boltzmann code $\texttt{CLASS}$, based on a dynamical system analysis of previous works. We show a detailed study of the evolution of…

Cosmology and Nongalactic Astrophysics · Physics 2023-07-13 L. Arturo Ureña-López , Francisco X. Linares Cedeño

We develop an effective-field-theory (EFT) framework to analyze the spectra emerging from lattice simulations of a large class of confining gauge theories. Simulations of these theories, for which the light-fermion count is not far below…

High Energy Physics - Phenomenology · Physics 2017-08-02 Thomas Appelquist , James Ingoldby , Maurizio Piai
‹ Prev 1 2 3 10 Next ›