ProxTerm.hpp

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#ifndef SPINLESSFILLER_PROXTERM_HPP
#define SPINLESSFILLER_PROXTERM_HPP

#include "../Hamiltonian.hpp"
#include "../EnumGamma.hpp"
#include "../SpinfullFiller/ProxTerm.hpp"

namespace Spinless
{

class ProxTerm
{
public:
    template <class T>
    static void Fill(Hamiltonian<T> &ham, double delta, int i, int j, double phase = 0.0)
    {
        ham.InsertBlock(Gamma::UpPlus, i, Gamma::UpPlus, j, 0.5 * delta * std::sin(phase));
        ham.InsertBlock(Gamma::UpPlus, i, Gamma::UpMinus, j, 0.5 * delta * std::cos(phase));
        ham.InsertBlock(Gamma::UpPlus, j, Gamma::UpMinus, i, -0.5 * delta * std::cos(phase));
        ham.InsertBlock(Gamma::UpMinus, i, Gamma::UpMinus, j, -0.5 * delta * std::sin(phase));
    }
    
    static const std::string name;
    static constexpr size_t locality{2};
};

const std::string ProxTerm::name{Spinfull::ProxTerm::name};

}

#endif