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We introduce microJAX, the first fully differentiable implementation of the image-centered ray-shooting (ICRS) algorithm for gravitational microlensing. Built on JAX and its XLA just-in-time compiler, microJAX exploits GPU parallelism while…

Earth and Planetary Astrophysics · Physics 2025-10-06 Shota Miyazaki , Hajime Kawahara

This work introduces ParamRF: a Python library for efficient, parametric modelling of radio frequency (RF) circuits. Built on top of the next-generation computational library JAX, as well as the object-oriented wrapper Equinox, the…

Other Computer Science · Computer Science 2026-05-22 Gary V. C. Allen , Dirk I. L. de Villiers

Although integral-field spectroscopy enables spatially resolved spectral studies of galaxies, bridging particle-based simulations to observations remains slow and non-differentiable. We present RUBIX, a JAX-based pipeline that models mock…

Context. Inferring spectral parameters from X-ray data is one of the cornerstones of high-energy astrophysics, and is achieved using software stacks that have been developed over the last twenty years and more. However, as models get more…

Instrumentation and Methods for Astrophysics · Physics 2024-10-23 Simon Dupourqué , Didier Barret , Camille M. Diez , Sébastien Guillot , Erwan Quintin

This paper introduces significant improvements to the GravAD pipeline, a Python-based system for gravitational wave detection. These advancements include a reduction in waveform templates, implementation of simulated signals, and…

General Relativity and Quantum Cosmology · Physics 2023-07-28 William E. Doyle

We investigate the possibility of improving the accuracy of the phenomenological waveform model, IMRPhenomD, by jointly optimizing all the calibration coefficients at once, given a set of numerical relativity (NR) waveforms. When IMRPhenomD…

General Relativity and Quantum Cosmology · Physics 2023-07-03 Kelvin K. H. Lam , Kaze W. K. Wong , Thomas D. P. Edwards

Differentiable numerical simulations of physical systems have gained rising attention in the past few years with the development of automatic differentiation tools. This paper presents JAX-SSO, a differentiable finite element analysis…

Mathematical Software · Computer Science 2024-07-30 Gaoyuan Wu

The development of reusable artificial intelligence (AI) models for wider use and rigorous validation by the community promises to unlock new opportunities in multi-messenger astrophysics. Here we develop a workflow that connects the Data…

Shape optimization is of great significance in structural engineering, as an efficient geometry leads to better performance of structures. However, the application of gradient-based shape optimization for structural and architectural design…

Mathematical Software · Computer Science 2023-06-30 Gaoyuan Wu

JAX-bandflux is a JAX implementation of critical supernova modelling functionality for cosmological analysis. The codebase implements key components of the established library SNCosmo in a differentiable framework, offering efficient…

Instrumentation and Methods for Astrophysics · Physics 2025-04-14 Samuel Alan Kossoff Leeney

This paper introduces a novel Partial Wave Analysis Code Generator (PWACG) that automatically generates high-performance partial wave analysis codes. This is achieved by leveraging the JAX automatic differentiation library and the jinja2…

Computational Physics · Physics 2025-11-18 Xiang Dong , Yu-Chang Sun , Chu-Cheng Pan , Ao-Yan Cheng , Ao-Bo Wang , Hao Cai , Kai Zhu

We introduce JAX FDM, a differentiable solver to design mechanically efficient shapes for 3D structures conditioned on target architectural, fabrication and structural properties. Examples of such structures are domes, cable nets and…

Computational Engineering, Finance, and Science · Computer Science 2023-10-31 Rafael Pastrana , Deniz Oktay , Ryan P. Adams , Sigrid Adriaenssens

We present CosmoPower-JAX, a JAX-based implementation of the CosmoPower framework, which accelerates cosmological inference by building neural emulators of cosmological power spectra. We show how, using the automatic differentiation, batch…

Cosmology and Nongalactic Astrophysics · Physics 2023-06-27 D. Piras , A. Spurio Mancini

We present an open-source differentiable acoustic simulator, j-Wave, which can solve time-varying and time-harmonic acoustic problems. It supports automatic differentiation, which is a program transformation technique that has many…

Computational Physics · Physics 2022-07-05 Antonio Stanziola , Simon R. Arridge , Ben T. Cox , Bradley E. Treeby

Engineering structures are increasingly designed using numerical optimisation. However, traditional optimisation methods can be challenging with multiple objectives and many parameters. In machine learning, stable training of artificial…

Computational Engineering, Finance, and Science · Computer Science 2026-04-24 James Hipperson , Jonathan Hargreaves , Trevor Cox

We present a rapid and reliable deep learning-based method for gravitational wave signal reconstruction from elusive, generic binary black hole mergers in LIGO data. We demonstrate that our model, \texttt{AWaRe}, effectively recovers…

General Relativity and Quantum Cosmology · Physics 2024-10-08 Chayan Chatterjee , Karan Jani

We present a GPU-accelerated implementation of the gravitational-wave Bayesian inference pipeline for parameter estimation and model comparison. Specifically, we implement the `acceptance-walk' sampling method, a cornerstone algorithm for…

General Relativity and Quantum Cosmology · Physics 2025-09-05 Metha Prathaban , David Yallup , James Alvey , Ming Yang , Will Templeton , Will Handley

We introduce synax, a novel library for automatically differentiable simulation of Galactic synchrotron emission. Built on the JAX framework, synax leverages JAX's capabilities, including batch acceleration, just-in-time compilation, and…

Instrumentation and Methods for Astrophysics · Physics 2025-03-26 Kangning Diao , Zack Li , Richard D. P. Grumitt , Yi Mao

We introduce JAX MD, a software package for performing differentiable physics simulations with a focus on molecular dynamics. JAX MD includes a number of physics simulation environments, as well as interaction potentials and neural networks…

Computational Physics · Physics 2020-12-04 Samuel S. Schoenholz , Ekin D. Cubuk

We present a fast, differentiable, GPU-accelerated optimization method for ray path tracing in environments containing planar reflectors and straight diffraction edges. Based on Fermat's principle, our approach reformulates the path-finding…

Signal Processing · Electrical Eng. & Systems 2026-01-01 Jérome Eertmans , Sophie Lequeu , Benoît Legat , Laurent Jacques , Claude Oestges