Struct Hermitian_operator¶

Defined in File Hermitian_operator.hpp

Inheritance Relationships¶

Derived Types¶

public Heisenberg_operator (Struct Heisenberg_operator)
public Hund_operator (Struct Hund_operator)
public anomalous_operator< op_field > (Template Struct anomalous_operator)
public general_interaction_operator< op_field > (Template Struct general_interaction_operator)
public interaction_operator (Struct interaction_operator)
public one_body_operator< op_field > (Template Struct one_body_operator)

Struct Documentation¶

struct Hermitian_operator¶

Abstract class representing a Hermitian operator, i.e. a term in the Hamiltonian.

Subclassed by Heisenberg_operator, Hund_operator, anomalous_operator< op_field >, general_interaction_operator< op_field >, interaction_operator, one_body_operator< op_field >

Public Functions

inline Hermitian_operator(const string &_name, shared_ptr<model> _the_model)¶

virtual double average_from_GF(matrix<Complex> &Gave, bool spin_down) = 0¶

virtual shared_ptr<HS_Hermitian_operator> build_HS_operator(sector sec, bool complex_Hilbert_space) = 0¶

virtual string type() = 0¶

virtual vector<matrix_element<Complex>> matrix_elements() = 0¶

virtual void multiply_add_OTF(const vector<Complex> &x, vector<Complex> &y, double z, shared_ptr<ED_mixed_basis> B) = 0¶

virtual void multiply_add_OTF(const vector<double> &x, vector<double> &y, double z, shared_ptr<ED_mixed_basis> B) = 0¶

virtual void print(ostream &fout) = 0¶

virtual void set_hopping_matrix(double value, matrix<Complex> &tc, bool spin_down, int sys_mixing) = 0¶

virtual void set_hopping_matrix(double value, matrix<double> &tc, bool spin_down, int sys_mixing) = 0¶

virtual void set_target(vector<bool> &in_bath) = 0¶

bool shift_label(size_t label, size_t &shifted_label, bool bath, bool nambu, bool spin_down)¶

template<typename HS_field> inline void expectation_value(const state<HS_field> &gs, double &average, double &average2)¶

template<typename HS_field> inline void dense_form(matrix<HS_field> &h, double z, sector sec)¶

Public Members

bool is_active¶: true is the operator is active (nonzero)

bool is_complex¶: true is the operator has complex matrix elements, which requires a complex Hilbert space

bool is_factorizable¶

bool is_interaction¶: true if the operator is an interaction

double nambu_correction_full¶: Nambu correction to the averages in the full Nambu mixing case.

double nambu_correction¶: Nambu correction to the averages in the restricted Nambu mixing case.

double norm¶: multiplicative factor on the average (e.g. to divide by the number of sites)

int mixing¶: mixing caused by this operator (default = normal)

mutable std::mutex hs_op_mutex¶: protects HS_operator map from concurrent insertions

map<sector, shared_ptr<HS_Hermitian_operator>> HS_operator¶: Hilbert space realizations, organized by sector.

shared_ptr<model> the_model¶: backtrace to the model

size_t target¶: target of the operator: 1:cluster, 2:bath, or 3:hybrid (binary coding).

string name¶: name of the operator