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- W3105491334 endingPage "008" @default.
- W3105491334 startingPage "008" @default.
- W3105491334 abstract "Cosmological datasets have great potential to elucidate the nature of dark energy and test gravity on the largest scales available to observation. Theoretical predictions can be computed with hi_class (www.hiclass-code.net), an accurate, fast and flexible code for linear cosmology, incorporating a wide range of dark energy theories and modifications to general relativity. We introduce three new functionalities into hi_class: (1) Support for models based on covariant Lagrangians, including a constraint-preserving integration scheme for the background evolution and a series of worked-out examples: Galileon, nKGB, quintessence (monomial, tracker) and Brans-Dicke. (2) Consistent initial conditions for the scalar-field perturbations in the deep radiation era, identifying the conditions under which modified-gravity isocurvature perturbations may grow faster than adiabatic modes leading to a loss of predictivity. (3) An automated quasi-static approximation scheme allowing order-of-magnitude improvement in computing performance without sacrificing accuracy for wide classes of models. These enhancements bring the treatment of dark energy and modified gravity models to the level of detail comparable to software tools restricted to standard ΛCDM cosmologies. The hi_class code is publicly available (https://github.com/miguelzuma/hi_class_public), ready to explore current data and prepare for next-generation experiments." @default.
- W3105491334 created "2020-11-23" @default.
- W3105491334 creator A5002247498 @default.
- W3105491334 creator A5009604018 @default.
- W3105491334 creator A5038779441 @default.
- W3105491334 date "2020-02-10" @default.
- W3105491334 modified "2023-10-04" @default.
- W3105491334 title "<tt>hi_class</tt> background evolution, initial conditions and approximation schemes" @default.
- W3105491334 cites W1526501687 @default.
- W3105491334 cites W1663255350 @default.
- W3105491334 cites W1668994020 @default.
- W3105491334 cites W1734266900 @default.
- W3105491334 cites W1813015282 @default.
- W3105491334 cites W1849126332 @default.
- W3105491334 cites W1853767801 @default.
- W3105491334 cites W1868735996 @default.
- W3105491334 cites W1872375445 @default.
- W3105491334 cites W1927428221 @default.
- W3105491334 cites W1978079086 @default.
- W3105491334 cites W1981597696 @default.
- W3105491334 cites W1984141606 @default.
- W3105491334 cites W1989972931 @default.
- W3105491334 cites W1998271445 @default.
- W3105491334 cites W2004188331 @default.
- W3105491334 cites W2034005104 @default.
- W3105491334 cites W2036439761 @default.
- W3105491334 cites W2041664594 @default.
- W3105491334 cites W2059243044 @default.
- W3105491334 cites W2062912482 @default.
- W3105491334 cites W2070136611 @default.
- W3105491334 cites W2073832139 @default.
- W3105491334 cites W2082485482 @default.
- W3105491334 cites W2084669109 @default.
- W3105491334 cites W2085415543 @default.
- W3105491334 cites W2086498981 @default.
- W3105491334 cites W2100960364 @default.
- W3105491334 cites W2115120324 @default.
- W3105491334 cites W2115571595 @default.
- W3105491334 cites W2116923776 @default.
- W3105491334 cites W2130038292 @default.
- W3105491334 cites W2131279590 @default.
- W3105491334 cites W2144560001 @default.
- W3105491334 cites W2155270790 @default.
- W3105491334 cites W2159795633 @default.
- W3105491334 cites W2160168896 @default.
- W3105491334 cites W2163930464 @default.
- W3105491334 cites W2164089543 @default.
- W3105491334 cites W2164721450 @default.
- W3105491334 cites W2166436681 @default.
- W3105491334 cites W2173172349 @default.
- W3105491334 cites W2211491388 @default.
- W3105491334 cites W2307793227 @default.
- W3105491334 cites W2308926591 @default.
- W3105491334 cites W2347096909 @default.
- W3105491334 cites W2442489531 @default.
- W3105491334 cites W2498300276 @default.
- W3105491334 cites W2501864044 @default.
- W3105491334 cites W2513411918 @default.
- W3105491334 cites W2532287105 @default.
- W3105491334 cites W2542595310 @default.
- W3105491334 cites W2596635487 @default.
- W3105491334 cites W2605744673 @default.
- W3105491334 cites W2743247785 @default.
- W3105491334 cites W2754075545 @default.
- W3105491334 cites W2758087512 @default.
- W3105491334 cites W2760919351 @default.
- W3105491334 cites W2763117186 @default.
- W3105491334 cites W2765543162 @default.
- W3105491334 cites W2766528830 @default.
- W3105491334 cites W2766754978 @default.
- W3105491334 cites W2768510880 @default.
- W3105491334 cites W2768724930 @default.
- W3105491334 cites W2772278655 @default.
- W3105491334 cites W2772986614 @default.
- W3105491334 cites W2777913141 @default.
- W3105491334 cites W2783011539 @default.
- W3105491334 cites W2790543291 @default.
- W3105491334 cites W2809778334 @default.
- W3105491334 cites W2809838409 @default.
- W3105491334 cites W2889702980 @default.
- W3105491334 cites W2894549591 @default.
- W3105491334 cites W2894705087 @default.
- W3105491334 cites W2900418540 @default.
- W3105491334 cites W2908982416 @default.
- W3105491334 cites W2922253934 @default.
- W3105491334 cites W2936477967 @default.
- W3105491334 cites W2938129722 @default.
- W3105491334 cites W2939024351 @default.
- W3105491334 cites W2944057852 @default.
- W3105491334 cites W2947808346 @default.
- W3105491334 cites W2948528836 @default.
- W3105491334 cites W2949657738 @default.
- W3105491334 cites W3005079263 @default.
- W3105491334 cites W3037524103 @default.
- W3105491334 cites W3037580761 @default.
- W3105491334 cites W3037834805 @default.
- W3105491334 cites W3098995669 @default.
- W3105491334 cites W3099119831 @default.