Random_Unitary Class Reference

A class to create general random unitary matrices according to arXiv:1303.5904v1. More...

#include <Random_Unitary.h>

Inheritance diagram for Random_Unitary:

Public Member Functions
Matrix	Construct_Unitary_Matrix ()
	Construct a random unitary with internally generated float64 parameters. More...
Matrix	Construct_Unitary_Matrix (double *vartheta, double *varphi, double *varkappa)
	Construct a float64 unitary from explicit parameter arrays (arXiv:1303.5904v1). More...
Matrix_float	Construct_Unitary_Matrix (float *vartheta, float *varphi, float *varkappa)
	Construct a float32 unitary from explicit parameter arrays (native float32, no precision conversion). More...
Matrix	Construct_Unitary_Matrix (double *parameters)
	Construct a float64 unitary from a packed parameter array of (dim+1)*(dim-1) elements (vartheta | varphi | varkappa contiguous). More...
void	print (const std::stringstream &sstream, int verbose_level=1) const
	Call to print output messages in the function of the verbosity level. More...
	Random_Unitary (int dim_in)
	Constructor. More...
void	set_debugfile (std::string debugfile)
	Call to set the debugfile name. More...
void	set_verbose (int verbose_in)
	Call to set the verbose attribute. More...

Public Attributes
bool	debug
	Logical variable. Set true to write output messages to the 'debug.txt' file. More...
std::string	debugfile_name
	String variable. Set the debug file name. More...
int	dim
	The number of rows in the created unitary. More...
int	verbose
	Set the verbosity level of the output messages. More...

Detailed Description

A class to create general random unitary matrices according to arXiv:1303.5904v1.

Internal helpers (Omega, M, Q, E_alpha_beta, I_alpha_beta, gamma, kronecker, convert_indexes) are implementation details and live in an anonymous namespace in the .cpp; they are not part of the public API.

Definition at line 57 of file Random_Unitary.h.

Constructor & Destructor Documentation

Random_Unitary()

Random_Unitary::Random_Unitary

(

int

dim_in

)

Constructor.

Constructor of the class.

Parameters

dim_in	The number of rows in the random unitary to be created.
dim_in	The number of rows in the random unitary to be created.

Returns

An instance of the class

Definition at line 315 of file Random_Unitary.cpp.

Member Function Documentation

Construct_Unitary_Matrix() [1/4]

Matrix Random_Unitary::Construct_Unitary_Matrix

(

)

Construct a random unitary with internally generated float64 parameters.

Returns

The constructed random unitary.

Definition at line 332 of file Random_Unitary.cpp.

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Construct_Unitary_Matrix() [2/4]

Matrix Random_Unitary::Construct_Unitary_Matrix	(	double *	vartheta,
		double *	varphi,
		double *	varkappa
	)

Construct a float64 unitary from explicit parameter arrays (arXiv:1303.5904v1).

Construct a float64 unitary from explicit parameter arrays.

Parameters

vartheta	array of dim*(dim-1)/2 elements
varphi	array of dim*(dim-1)/2 elements
varkappa	array of dim-1 elements

Returns

The constructed float64 unitary.

Definition at line 364 of file Random_Unitary.cpp.

Construct_Unitary_Matrix() [3/4]

Matrix_float Random_Unitary::Construct_Unitary_Matrix	(	float *	vartheta,
		float *	varphi,
		float *	varkappa
	)

Construct a float32 unitary from explicit parameter arrays (native float32, no precision conversion).

Parameters

vartheta	array of dim*(dim-1)/2 elements
varphi	array of dim*(dim-1)/2 elements
varkappa	array of dim-1 elements

Returns

The constructed float32 unitary.

Definition at line 378 of file Random_Unitary.cpp.

Construct_Unitary_Matrix() [4/4]

Matrix Random_Unitary::Construct_Unitary_Matrix

(

double *

parameters

)

Construct a float64 unitary from a packed parameter array of (dim+1)*(dim-1) elements (vartheta | varphi | varkappa contiguous).

Construct a float64 unitary from a packed parameter array.

Parameters

parameters

array of (dim+1)*(dim-1) elements

Returns

The constructed float64 unitary.

Parameters

parameters

array of (dim+1)*(dim-1) elements (vartheta | varphi | varkappa contiguous)

Returns

The constructed float64 unitary.

Definition at line 389 of file Random_Unitary.cpp.

print()

void logging::print ( const std::stringstream &  sstream, int  verbose_level = 1  ) const

inherited

Call to print output messages in the function of the verbosity level.

Parameters

sstream	The stringstream input to store the output messages.
verbose_level	Integer input. High level means write more to the standart output, 0 means write nothing. The default value is set to 1.

Definition at line 55 of file logging.cpp.

set_debugfile()

void logging::set_debugfile ( std::string  debugfile )

inherited

Call to set the debugfile name.

Parameters

debugfile

String variable. Set the debugfile name.

Definition at line 95 of file logging.cpp.

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set_verbose()

void logging::set_verbose ( int  verbose_in )

inherited

Call to set the verbose attribute.

Parameters

verbose_in

Integer variable. Set the number to specify the verbosity level for output messages.

Definition at line 85 of file logging.cpp.

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Member Data Documentation

debug

bool logging::debug

inherited

Logical variable. Set true to write output messages to the 'debug.txt' file.

Definition at line 53 of file logging.h.

debugfile_name

std::string logging::debugfile_name

inherited

String variable. Set the debug file name.

Definition at line 56 of file logging.h.

dim

int Random_Unitary::dim

The number of rows in the created unitary.

Definition at line 61 of file Random_Unitary.h.

verbose

int logging::verbose

inherited

Set the verbosity level of the output messages.

Definition at line 50 of file logging.h.

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The documentation for this class was generated from the following files:

• Random_Unitary.h
• Random_Unitary.cpp