uni20::tensor_network::FiniteMpo< Scalar, Auxiliary, Physical, Storage > Class Template Reference

Homogeneous finite MPO owner with exact auxiliary connectivity. More...

#include <finite_chain.hpp>

Public Types
using	auxiliary_space_type = Auxiliary
using	physical_space_type = Physical
using	site_type = MpoSite< Scalar, Auxiliary, Physical, Auxiliary, Physical, Storage >
using	storage_policy = Storage
using	value_type = std::remove_cv_t< Scalar >

Public Member Functions
	FiniteMpo (std::vector< site_type > sites)
	Construct a nonempty chain and validate every shared auxiliary.
void	replace_site (std::size_t index, site_type replacement)
	Replace one MPO site without changing any of its spaces.
auto	revision (std::size_t index) const -> std::size_t
	Return the revision of one site.
auto	site (std::size_t index) const -> site_type const &
	Return one read-only site.
auto	sites () const noexcept -> std::span< site_type const >
	Return all sites in left-to-right order.
auto	size () const noexcept -> std::size_t
	Return the number of sites.
auto	symmetry () const -> Symmetry
	Return the common symmetry context.

Detailed Description

template<typename Scalar, Space Auxiliary, Space Physical, BlockTensorStorage Storage = SeparateSparseBlockStorage<>>
class uni20::tensor_network::FiniteMpo< Scalar, Auxiliary, Physical, Storage >

Homogeneous finite MPO owner with exact auxiliary connectivity.

MPO sites are exposed read-only and may be replaced only without changing their spaces.

Template Parameters

Scalar	Numerical MPO element type.
Auxiliary	Concrete left and right auxiliary-space type.
Physical	Concrete input and output physical-space type.
Storage	Block storage policy used by every site.

Member Typedef Documentation

auxiliary_space_type

template<typename Scalar , Space Auxiliary, Space Physical, BlockTensorStorage Storage = SeparateSparseBlockStorage<>>

using uni20::tensor_network::FiniteMpo< Scalar, Auxiliary, Physical, Storage >::auxiliary_space_type = Auxiliary

physical_space_type

template<typename Scalar , Space Auxiliary, Space Physical, BlockTensorStorage Storage = SeparateSparseBlockStorage<>>

using uni20::tensor_network::FiniteMpo< Scalar, Auxiliary, Physical, Storage >::physical_space_type = Physical

site_type

template<typename Scalar , Space Auxiliary, Space Physical, BlockTensorStorage Storage = SeparateSparseBlockStorage<>>

using uni20::tensor_network::FiniteMpo< Scalar, Auxiliary, Physical, Storage >::site_type = MpoSite<Scalar, Auxiliary, Physical, Auxiliary, Physical, Storage>

storage_policy

template<typename Scalar , Space Auxiliary, Space Physical, BlockTensorStorage Storage = SeparateSparseBlockStorage<>>

using uni20::tensor_network::FiniteMpo< Scalar, Auxiliary, Physical, Storage >::storage_policy = Storage

value_type

template<typename Scalar , Space Auxiliary, Space Physical, BlockTensorStorage Storage = SeparateSparseBlockStorage<>>

using uni20::tensor_network::FiniteMpo< Scalar, Auxiliary, Physical, Storage >::value_type = std::remove_cv_t<Scalar>

Constructor & Destructor Documentation

FiniteMpo()

template<typename Scalar , Space Auxiliary, Space Physical, BlockTensorStorage Storage = SeparateSparseBlockStorage<>>

uni20::tensor_network::FiniteMpo< Scalar, Auxiliary, Physical, Storage >::FiniteMpo ( std::vector< site_type >  sites )

inlineexplicit

Construct a nonempty chain and validate every shared auxiliary.

Parameters

sites

Ordered MPO sites from left to right.

Exceptions

std::invalid_argument

If the chain is empty, mixes symmetries, or contains unequal adjacent auxiliary spaces.

Member Function Documentation

replace_site()

template<typename Scalar , Space Auxiliary, Space Physical, BlockTensorStorage Storage = SeparateSparseBlockStorage<>>

void uni20::tensor_network::FiniteMpo< Scalar, Auxiliary, Physical, Storage >::replace_site ( std::size_t  index, site_type  replacement  )

inline

Replace one MPO site without changing any of its spaces.

Parameters

index	Zero-based site index.
replacement	New site with exactly equal domain and codomain.

Exceptions

std::invalid_argument	If symmetry or spaces differ.
std::out_of_range	If index is outside the chain.

revision()

template<typename Scalar , Space Auxiliary, Space Physical, BlockTensorStorage Storage = SeparateSparseBlockStorage<>>

auto uni20::tensor_network::FiniteMpo< Scalar, Auxiliary, Physical, Storage >::revision ( std::size_t  index ) const -> std::size_t

inline

Return the revision of one site.

Parameters

index

Zero-based site index.

Exceptions

std::out_of_range

If index is outside the chain.

site()

template<typename Scalar , Space Auxiliary, Space Physical, BlockTensorStorage Storage = SeparateSparseBlockStorage<>>

auto uni20::tensor_network::FiniteMpo< Scalar, Auxiliary, Physical, Storage >::site ( std::size_t  index ) const -> site_type const&

inline

Return one read-only site.

Parameters

index

Zero-based site index.

Exceptions

std::out_of_range

If index is outside the chain.

sites()

template<typename Scalar , Space Auxiliary, Space Physical, BlockTensorStorage Storage = SeparateSparseBlockStorage<>>

auto uni20::tensor_network::FiniteMpo< Scalar, Auxiliary, Physical, Storage >::sites ( ) const -> std::span<site_type const>

inlinenoexcept

Return all sites in left-to-right order.

size()

template<typename Scalar , Space Auxiliary, Space Physical, BlockTensorStorage Storage = SeparateSparseBlockStorage<>>

auto uni20::tensor_network::FiniteMpo< Scalar, Auxiliary, Physical, Storage >::size ( ) const -> std::size_t

inlinenoexcept

Return the number of sites.

symmetry()

template<typename Scalar , Space Auxiliary, Space Physical, BlockTensorStorage Storage = SeparateSparseBlockStorage<>>

auto uni20::tensor_network::FiniteMpo< Scalar, Auxiliary, Physical, Storage >::symmetry ( ) const -> Symmetry

inline

Return the common symmetry context.

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

• finite_chain.hpp