PyTransport

PyTransport: A Python package for the calculation of inflationary correlation functions. PyTransport constitutes a straightforward code written in C++ together with Python scripts which automatically edit, compile and run the C++ code as a Python module. It has been written for Unix-like systems (OS X and Linux). Primarily the module employs the transport approach to inflationary cosmology to calculate the tree-level power-spectrum and bispectrum of user specified models of multi-field inflation, accounting for all sub and super-horizon effects. The transport method we utilise means only coupled differential equations need to be solved, and the implementation presented here combines the speed of C++ with the functionality and convenience of Python. This document details the code and illustrates how to use it with a worked example. It has been updated to be a companion to the second version of the code, PyTransport 2.0, which includes functionality to deal with models of inflation with a curved field space metric


References in zbMATH (referenced in 16 articles , 1 standard article )

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  1. Cheong, Dhong Yeon; Lee, Sung Mook; Park, Seong Chan: Primordial black holes in Higgs-(R^2) inflation as the whole of dark matter (2021)
  2. Clarke, Philip; Shellard, E. P. S.: Probing inflation with precision bispectra (2021)
  3. Pinol, Lucas: Multifield inflation beyond (N_\mathrmfield=2): non-Gaussianities and single-field effective theory (2021)
  4. Garcia-Saenz, Sebastian; Pinol, Lucas; Renaux-Petel, Sébastien: Revisiting non-Gaussianity in multifield inflation with curved field space (2020)
  5. Babalic, Elena Mirela; Lazaroiu, Calin Iuliu: Generalized (\alpha)-attractor models from elementary hyperbolic surfaces (2018)
  6. Babalic, Elena Mirela; Lazaroiu, Calin Iuliu: Generalized two-field (\alpha)-attractor models from the hyperbolic triply-punctured sphere (2018)
  7. Bjorkmo, Theodor; Marsh, M. C. David: Manyfield inflation in random potentials (2018)
  8. Carrilho, Pedro; Mulryne, David; Ronayne, John; Tenkanen, Tommi: Attractor behaviour in multifield inflation (2018)
  9. Garcia-Saenz, Sebastian; Renaux-Petel, Sébastien: Flattened non-Gaussianities from the effective field theory of inflation with imaginary speed of sound (2018)
  10. Garcia-Saenz, Sebastian; Renaux-Petel, Sébastien; Ronayne, John: Primordial fluctuations and non-Gaussianities in sidetracked inflation (2018)
  11. Karčiauskas, Mindaugas; Kohri, Kazunori; Mori, Taro; White, Jonathan: Slow-roll corrections in multi-field inflation: a separate universes approach (2018)
  12. Lazaroiu, C. I.; Shahbazi, C. S.: Generalized two-field (\alpha)-attractor models from geometrically finite hyperbolic surfaces (2018)
  13. Ronayne, John W.; Mulryne, David J.: Numerically evaluating the bispectrum in curved field-space -- with \textttPyTransport2.0 (2018)
  14. Jung, Gabriel; van Tent, Bartjan: Non-Gaussianity in two-field inflation beyond the slow-roll approximation (2017)
  15. Raveendran, Rathul Nath; Sriramkumar, L.: Numerical evaluation of the tensor bispectrum in two field inflation (2017)
  16. David J. Mulryne, John W. Ronayne: PyTransport: A Python package for the calculation of inflationary correlation functions (2016) arXiv