block_space.hpp File Reference

Defines immutable block-structured tensor spaces and regularization helpers. More...

#include <uni20/symmetry/block_sector.hpp>
#include <uni20/symmetry/irregular_space.hpp>
#include <uni20/symmetry/local_space.hpp>
#include <uni20/symmetry/qnum.hpp>
#include <uni20/symmetry/space.hpp>
#include <algorithm>
#include <concepts>
#include <cstddef>
#include <initializer_list>
#include <numeric>
#include <ranges>
#include <span>
#include <stdexcept>
#include <string>
#include <unordered_map>
#include <unordered_set>
#include <utility>
#include <vector>

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Classes
struct	uni20::BlockRangeMapping
	Destination range of one irregular block after regularization. More...
class	uni20::BlockSpace
	Immutable coalesced tensor space represented as unique symmetry blocks. More...
struct	uni20::IrregularSpaceRegularization
	Result of regularizing an ordered segmented IrregularSpace. More...
struct	uni20::LocalSpaceRegularization
	Result of regularizing an immutable LocalSpace. More...
struct	uni20::QNumListRegularization
	Result of regularizing a sparse QNumList into a coalesced BlockSpace. More...

Namespaces
namespace	uni20

Functions
auto	uni20::regularize (IrregularSpace const &space) -> IrregularSpaceRegularization
	Regularize an ordered segmented space into one block per quantum number.
auto	uni20::regularize (LocalSpace const &space) -> LocalSpaceRegularization
	Regularize a LocalSpace into one block per quantum number.
auto	uni20::regularize (QNumList const &list) -> QNumListRegularization
	Regularize a sparse QNumList into one block per quantum number.
auto	uni20::to_block_space (IrregularSpace const &space) -> BlockSpace
	Return the canonical block-space representation of an IrregularSpace.
auto	uni20::to_block_space (LocalSpace const &space) -> BlockSpace
	Return the coalesced block-space representation of a LocalSpace.
auto	uni20::to_block_space (QNumList const &list) -> BlockSpace
	Return the coalesced block-space representation of a sparse QNumList.

Detailed Description

Defines immutable block-structured tensor spaces and regularization helpers.

See docs/symmetry/qnum.md for the current BlockSpace and QNumList tensor-space API and how they fit into the planned DMRG integration work.