Spin-half fermion Model¶
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class spinhalf
Model for a single orbital with spin up and down f operator. SIAM can made entirely from this class.
Each Model class should have
f_dag_operator,eigenvalues_Q,chi_Q,n_Q.Public Functions
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inline spinhalf(double teps, double tUint, double tmag = 0)
- Parameters:
teps – : \(\epsilon_d \) is onsite energy of the SIAM
tUint –
UColumb interaction of SIAMtmag – : Magnetic field of SIAM
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inline auto getDoubleOcc() const
Double Occupancy of the site as operator. Not needed for the SIAM model build. Usefull for the static or dynamic calculation.
- Returns:
Public Members
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std::vector<qOperator> f_dag_operator
\( f^\dagger\) operator
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std::vector<std::vector<double>> eigenvalues_Q
Eigenvalues of the Hamiltonian.
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std::vector<double> chi_Q
Fermion sign of the each basis states. \( (-1)^ {n_{particle}}\).
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std::vector<std::vector<int>> n_Q
Quantum numbers of the basis states.
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inline spinhalf(double teps, double tUint, double tmag = 0)