This is the main Diagram class, containing the variables defining the diagram - inherited from Diagram_core - and the functions to attempt the updates. More...
#include <diagram.h>
Inheritance diagram for Diagram:
Collaboration diagram for Diagram:
Public Member Functions | |
| Diagram (double beta, int s0, double H, double GAMMA, std::list< double > _vertices=std::list< double >(), unsigned int seed=std::chrono::system_clock::now().time_since_epoch().count()) | |
| Construct a new Diagram object, setting its defining parameters. The list of vertices is optional: by default it is the empty list, corresponding to the 0-th order diagram [0]----—[beta]. Optionally, a seed for the Mersenne-Twister random number generator can be explicitly set. More... | |
| bool | attempt_add_segment () |
| Attemps the ADD_SEGMENT update for the current status of the diagram. More... | |
| bool | attempt_remove_segment () |
| Attemps the REMOVE_SEGMENT update for the current status of the diagram. More... | |
| bool | attempt_spin_flip () |
| Attemps the SPIN_FLIP update for the current status of the diagram. More... | |
| void | reset_diagram (double beta, int s0, double H, double GAMMA, std::list< double > vertices=std::list< double >(), unsigned int seed=std::chrono::system_clock::now().time_since_epoch().count()) |
| Reset all diagram parameters with the new values. More... | |
| double | operator/ (const Diagram_core &other) const |
| Returns the ratio of the weights of the two diagrams, i.e. this->value()/other.value() More... | |
 Public Member Functions inherited from Diagram_core | |
| Diagram_core (double beta, int s0, double H, double GAMMA, std::list< double > vertices=std::list< double >()) | |
| Construct a new diagram, setting its defining parameters. The list of vertices is optional: by default it is the 0-th order diagram [0]----—[beta]. More... | |
| bool | operator== (const Diagram_core &other) const |
| operator to test wether two Diagram_core objects are equal. It is intended for TESTING purposes only, and not to be used within the program. It checks that all values defining a diagram (beta, s0, H, GAMMA and each vertex in the vertices list) of the two Diagram_core objects are within EPSILON = 1e-10 from each other. EPSILON is defined at the beginning of diagram.h More... | |
| bool | operator!= (const Diagram_core &other) const |
| operator to test wether two Diagram_core objects are different. It is the negation of operator==. It is intended for TESTING purposes only, and not to be used within the program. More... | |
| double | operator/ (const Diagram_core &other) const |
| Returns the ratio of the weights of the two diagrams, i.e. this->value()/other.value() More... | |
| double | sum_deltatau () const |
| Small helper function, performing the sum (... +t4-t3 + t2-t1) More... | |
| double | value () const |
| Returns the value ("weight") of the current diagram. More... | |
| size_t | order () const |
| Get the order of the diagram (number of _vertices) More... | |
| double | get_beta () const |
| Get the value of _beta (length of the diagram) More... | |
| int | get_s0 () const |
| Get the value of the spin of the 0-th segment of the diagram [0—t1]. More... | |
| double | get_H () const |
| Get the value of the longitudinal field _H. More... | |
| double | get_GAMMA () const |
| Get the value of the transverse field _GAMMA. More... | |
| std::list< double > | get_vertices () const |
| Get a copy of the list of _vertices. More... | |
| double | acceptance_rate_add (double tau1, double tau2, double tau2max, double new_segment_spin) const |
| Returns the acceptance rate for the ADD_SEGMENT update for the given parameters. More... | |
| double | acceptance_rate_remove (double tau1, double tau2, double tau2max, double segment_toberemoved_spin) const |
| Returns the acceptance rate for the REMOVE_SEGMENT update for the given parameters. More... | |
| double | acceptance_rate_flip () const |
| Returns the acceptance rate for the SPIN_FLIP update for the given parameter. More... | |
| bool | attempt_add_segment (double RN1, double RN2, double RNacc) |
| Attemps the ADD_SEGMENT update for the current status of the diagram, using the three random numbers given in input. More... | |
| bool | attempt_remove_segment (double RN1, double RNacc) |
| Attemps the REMOVE_SEGMENT update for the current status of the diagram, using the two random numbers given in input. More... | |
| bool | attempt_spin_flip (double RNacc) |
| Attemps the SPIN_FLIP update for the current status of the diagram, using the random number given in input. More... | |
Additional Inherited Members | |
| Protected Member Functions inherited from Diagram_core | |
| void | assert_parameters_validity (double beta, int s0, double H, double GAMMA, std::list< double > vertices) const |
| Internal (non-public) member function that checks wether all the parameters are within the allowed values. Throws an std::invalid_argument exception otherwise. It is used in the Diagram_core constructor and in Diagram::reset_diagram. More... | |
| Protected Attributes inherited from Diagram_core | |
| double | _beta |
| length of the diagram (here representing the thermondinamical beta = 1/T)). Must be > 0. More... | |
| int | _s0 |
| spin of the 0-th segment of the diagram [0—t1]. Must be +1 or -1 More... | |
| double | _H |
| value of the longitudinal component of magnetic field More... | |
| double | _GAMMA |
| Value of the transversal component of magnetic field. Must be != 0. More... | |
| std::list< double > | _vertices |
| list containing the times of the diagram vertices More... | |
Detailed Description
This is the main Diagram class, containing the variables defining the diagram - inherited from Diagram_core - and the functions to attempt the updates.
Constructor & Destructor Documentation
◆ Diagram()
| Diagram::Diagram | ( | double | beta, |
| int | s0, | ||
| double | H, | ||
| double | GAMMA, | ||
| std::list< double > | _vertices = std::list< double >(), |
||
| unsigned int | seed = std::chrono::system_clock::now().time_since_epoch().count() |
||
| ) |
Construct a new Diagram object, setting its defining parameters. The list of vertices is optional: by default it is the empty list, corresponding to the 0-th order diagram [0]----—[beta]. Optionally, a seed for the Mersenne-Twister random number generator can be explicitly set.
- Parameters
-
beta Length of the diagram (here representing the thermondinamical beta = 1/T). Must be > 0. s0 Spin of the 0-th segment of the diagram [0—t1]. Must be +1 or -1. H Value of the longitudinal component of magnetic field GAMMA Value of the transversal component of magnetic field. Must be != 0. vertices (optional) List containing the times of diagram _vertices, with t1<t2<t3... (they need to be already sorted) seed (optional) Seed to initialize the random number generator
Member Function Documentation
◆ attempt_add_segment()
| bool Diagram::attempt_add_segment | ( | ) |
Attemps the ADD_SEGMENT update for the current status of the diagram.
- Returns
- true if update was accepted,
- false if update was rejected
◆ attempt_remove_segment()
| bool Diagram::attempt_remove_segment | ( | ) |
Attemps the REMOVE_SEGMENT update for the current status of the diagram.
- Returns
- true if update was accepted,
- false if update was rejected
◆ attempt_spin_flip()
| bool Diagram::attempt_spin_flip | ( | ) |
Attemps the SPIN_FLIP update for the current status of the diagram.
- Returns
- true if update was accepted,
- false if update was rejected
◆ operator/()
| double Diagram_core::operator/ | ( | const Diagram_core & | other | ) | const |
◆ reset_diagram()
| void Diagram::reset_diagram | ( | double | beta, |
| int | s0, | ||
| double | H, | ||
| double | GAMMA, | ||
| std::list< double > | vertices = std::list< double >(), |
||
| unsigned int | seed = std::chrono::system_clock::now().time_since_epoch().count() |
||
| ) |
Reset all diagram parameters with the new values.
- Parameters
-
beta Length of the diagram (here representing the thermondinamical beta = 1/T). Must be > 0. s0 Spin of the 0-th segment of the diagram [0—t1]. Must be +1 or -1. H Value of the longitudinal component of magnetic field GAMMA Value of the transversal component of magnetic field. Must be != 0. vertices (optional) List containing the times of diagram _vertices, with t1<t2<t3... < _beta (they need to be already sorted) seed (optional) Seed to initialize the random number generator
The documentation for this class was generated from the following file:
- include/diagmc/diagram.h
