constant.H

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/* Copyright 2019-2022 Andrew Myers, Luca Fedeli, Maxence Thevenet,
 *                     Weiqun Zhang, Axel Huebl
 *
 * This file is part of WarpX.
 *
 * License: BSD-3-Clause-LBNL
 */
#ifndef ABLASTR_CONSTANT_H_
#define ABLASTR_CONSTANT_H_
 
#include <AMReX_REAL.H>
 

namespace ablastr::constant
{
    namespace math
    {
        using namespace amrex::literals;

        static constexpr amrex::Real pi = 3.14159265358979323846_rt;

        static constexpr amrex::Real tau = 2.0_rt * pi;
    } // namespace math

    namespace SI
    {
        using namespace amrex::literals;

        static constexpr auto c = 299'792'458._rt;
        static constexpr auto ep0 = 8.8541878188e-12_rt;
        static constexpr auto mu0 = 1.2566370612685e-06_rt;
        static constexpr auto q_e = 1.602176634e-19_rt;
        static constexpr auto m_e = 9.1093837139e-31_rt;
        static constexpr auto m_p = 1.67262192595e-27_rt;
        static constexpr auto m_u = 1.66053906892e-27_rt;

        static constexpr auto hbar = 1.0545718176461565e-34_rt;
        static constexpr auto alpha = 0.0072973525643330135_rt;
        static constexpr auto r_e = 2.8179403205e-15_rt;
        static constexpr double xi = 1.3050122383827227e-52;
        static constexpr auto xi_c2 = 1.1728865075613984e-35_rt;

        static constexpr auto kb = 1.380649e-23_rt;

        static constexpr auto eV = q_e;
        static constexpr auto MeV = q_e * 1e6_rt;
        static constexpr auto eV_invc = eV / c;
        static constexpr auto MeV_invc = MeV / c;
        static constexpr auto eV_invc2 = eV / (c * c);
        static constexpr auto MeV_invc2 = MeV / (c * c);
    } // namespace SI
} // namespace ablastr::constant
 
#endif // ABLASTR_CONSTANT_H_