iPEPSv2 State structure. More...

#include <state.h>

Collaboration diagram for syten::IPEPSv2::State:

Public Member Functions
void	build_dl ()
	Builds all missing double-layer tensors. More...

void	build_dl (Coord const &coord)
	Builds the double-layer tensor at the specified coordinate. More...

void	crude_truncate (Truncation trunc)
	Crudely truncates the state down to the specified criterion using a series of simple-update SVDs. More...

STensor &	dl (Coord const &coord)
	Returns a reference to the double-layer tensor at the specified coordinate. More...

STensor const &	dl (Coord const &coord) const
	Returns a constant reference to the double-layer tensor at the specified coordinate, throws if this tensor has not been built yet. More...

void	focus (Coord const &coord)
	Does QR-decompositions towards coordinate `coord` on all four neighbouring sites. More...

int	getDepth () const
	Returns the depth of the unit cell. More...

int	getWidth () const
	Returns the width of the unit cell. More...

bool	has_complete_dl () const
	Returns true of the state has a complete set of double-layer tensors. More...

void	invalidate_dl (Coord const &coord)
	Invalidates the double-layer tensor at the specified coordinate. More...

Index	max_blocksize () const
	Returns the maximal block size of the auxiliary bases in this state. More...

Index	max_reduced_states () const
	Returns the maximal reduced bases size of the auxiliary bases in this state. More...

Index	max_total_states () const
	Returns the maximal total bases size of the auxiliary bases in this state. More...

void	normalise_tensors ()
	Normalises all tensors to have norm 1. More...

STensor const &	operator() (Coord const &coord) const
	Returns a const reference to the site tensor at the specified coordinate, preserves the double-layer tensor. More...

State &	operator= (State &&other)=default
	Move assignment operator. More...

State &	operator= (State const &other)=default
	Copy assignment operator. More...

STensor &	operator[] (Coord const &coord)
	Returns a reference to the site tensor at the specified coordinate, invalidates the double-layer tensor. More...

STensor const &	operator[] (Coord const &coord) const
	Returns a const reference to the site tensor at the specified coordinate, preserves the double-layer tensor. More...

	State ()=default
	Default ctor. More...

	State (Lattice const &lat)
	Standard ctor, initialises dimensions and bases but leaves tensors empty. More...

	State (State &&other)=default
	Default move ctor. More...

	State (State const &other)=default
	Default copy ctor. More...

Public Attributes
Grid< SBasisId >	d
	Local physical bases organised in a site-based grid. More...

History	history
	History storage. More...

BondGrid< SBasisId >	m
	Auxiliary/virtual bases of the state organised in a bond-based grid. More...

BondGrid< SBasisId >	mdl
	Auxiliary/virtual bases of the double-layer tensors organised in a bond-based grid. More...

Private Attributes
int	depth
	unit cell depth (vertical/forwards-backwards) More...

Grid< STensor >	double_layer
	Rank-4 double-layer tensors organised in a site-based grid. More...

Grid< STensor >	state
	State tensors organised in a site-based grid. More...

int	width
	unit cell width (horizontal/left-right) More...

Boost serialisation support
static constexpr unsigned int	version = 3
	Boost serialisation version. More...

static const std::string	uuid = "3b4d661e-c872-11e8-bbc2-27761324cb72"
	Boost serialisation UUID identifying iPEPSv2 state files. More...

template<typename Archive >
void	save (Archive &ar, const unsigned int) const
	Boost serialisation saving function. More...

template<typename Archive >
void	load (Archive &ar, const unsigned int in_version)
	Boost serialisation loading function supporting older state files. More...

Detailed Description

iPEPSv2 State structure.

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

inc/ipeps2/state.h
inc/ipeps2/state.cpp

Public Member Functions

Public Attributes

Private Attributes

Boost serialisation support

Detailed Description