/home/pxiang/workspace_new/CalculateGreenFunction/src/basis_set/basis.cpp File Reference

#include "basis.h"

Functions
void	getLatticeIndex (LatticeShape &lattice, Basis &basis, int &site1, int &site2)
double	distance (Basis &b1, Basis &b2)
void	printNeighbors (Neighbors &neighbors)
void	generateNeighbors (Basis basis, int distance, LatticeShape &lattice, Neighbors &neighbors)
void	generateIndexMatrix (LatticeShape &lattice)
Variables
std::vector< std::vector< BasisPointer > >	VtoG
std::vector< int >	DimsOfV
IMatrix	IndexMatrix

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Function Documentation

double distance	(	Basis &	b1,
		Basis &	b2
	)

void generateIndexMatrix

(

LatticeShape &

lattice

)

void generateNeighbors	(	Basis	basis,
		int	distance,
		LatticeShape &	lattice,
		Neighbors &	neighbors
	)

Given a two-particle state, this function generate its neighbors that at some distance. The distance can take both positive and negative values. If distance < 0, we call the neighbors left neighbors. If distance > 0, we call the neighbors right neighbors.

void getLatticeIndex	(	LatticeShape &	lattice,
		Basis &	basis,
		int &	site1,
		int &	site2
	)

In a lattice, we give each site an index. For example, in 1D, we can use the index numbers 0 ... xmax to denote each sites. In 2D, we still want to use a single number to denote each lattice site, so we assign a number to each position (x,y). This is a mapping from (x, y) to a positive integer nth.

Given a basis (1D or 2D), this function return the corresponding lattice index.

void printNeighbors

(

Neighbors &

neighbors

)

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Variable Documentation

std::vector<int> DimsOfV

IMatrix IndexMatrix

std::vector< std::vector<BasisPointer> > VtoG

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