1 code implementation • 7 Jan 2021 • W. E. V. Barker, A. N. Lasenby, M. P. Hobson, W. J. Handley
It was recently found that, when linearised in the absence of matter, 58 cases of the general gravitational theory with quadratic curvature and torsion are (i) free from ghosts and tachyons and (ii) power-counting renormalisable.
General Relativity and Quantum Cosmology Cosmology and Nongalactic Astrophysics High Energy Physics - Theory
1 code implementation • 9 Jul 2020 • F. J. Agocs, M. P. Hobson, W. J. Handley, A. N. Lasenby
We present a method to construct a continuous extension (otherwise known as dense output) for a numerical routine in the special case of the numerical solution being a scalar-valued function exhibiting rapid oscillations.
Computational Physics Instrumentation and Methods for Astrophysics
no code implementations • 30 May 2019 • F. J. Agocs, W. J. Handley, A. N. Lasenby, M. P. Hobson
We present a novel numerical routine (oscode) with a C++ and Python interface for the efficient solution of one-dimensional, second-order, ordinary differential equations with rapidly oscillating solutions.
Computational Physics Cosmology and Nongalactic Astrophysics Instrumentation and Methods for Astrophysics Numerical Analysis Numerical Analysis
2 code implementations • 30 May 2015 • W. J. Handley, M. P. Hobson, A. N. Lasenby
PolyChord is a novel nested sampling algorithm tailored for high-dimensional parameter spaces.
Instrumentation and Methods for Astrophysics