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SyTen
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SyTen
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A smart basis class. More...
#include <sbasis.h>
Collaboration diagram for syten::STensorImpl::SBasis:Public Member Functions | |
| SBasis | a () const |
| Returns an adjointed copy of the basis (with changed identifiers). More... | |
| void | add (Sector const &sec, Index const sz) |
Adds a quantum number sector of size sz to the basis, does not affect the identifiers. More... | |
| SBasis & | adjoint () |
| Adjoints the basis. More... | |
| SBasis | adjointed () const |
| Returns an adjointed copy of the basis (with changed identifiers). More... | |
| MemoryUsage::MemorySize | allocSize () const |
| allocSize()/memory_size.h support. More... | |
| SRDef | average_blocksize () const |
| Returns the average blocksize in the basis. More... | |
| std::unordered_map< Sector, Index >::iterator | begin () |
| Iterator access to sector map. More... | |
| std::unordered_map< Sector, Index >::const_iterator | begin () const |
| Iterator access to sector map. More... | |
| SBasis | cprime (std::int8_t value=1) const |
Returns a copy with increased prime level by value. More... | |
| SBasis | cunprime (std::int8_t value=1) const |
Returns a copy with decreased the prime level by value. More... | |
| Direction | dir () const |
| Returns the direction of the basis. More... | |
| Index | elementSize (Sector const &sec) const |
| Returns the size of the specified sector or zero if it is not stored. More... | |
| std::unordered_map< Sector, Index >::iterator | end () |
| Iterator access to sector map. More... | |
| std::unordered_map< Sector, Index >::const_iterator | end () const |
| Iterator access to sector map. More... | |
| void | erase (Sectors::const_iterator which) |
| Erases the element. More... | |
| SBasis | f () const |
| Returns a flipped copy of the basis (with the same identifiers). More... | |
| SBasis | fa () const |
| Returns a flipped and adjointed copy of the basis (with changed identifiers). More... | |
| SBasis & | flip () |
| Flips the basis direction, does not affect the identifiers. More... | |
| SBasis | flipped () const |
| Returns a flipped copy of the basis (with the same identifiers). More... | |
| Basis | gen_basis () const |
Generates a Basis object from this basis. More... | |
| SBasisId | get_id () const |
| Returns the inner SBasisId object. More... | |
| std::tuple< std::uint32_t, std::uint32_t, std::uint32_t > | get_ids () const |
| Returns a tuple with the three identifying integers. More... | |
| std::uint8_t | get_prlvl () const |
| Returns the prime level of the basis. More... | |
| bool | hasSymmetry (Sector const &sec) const |
| Returns true if this basis contains the specified sector. More... | |
| bool | is_vacuum () const |
| Returns true if this basis is a vacuum basis (single element, all 0 labels) More... | |
| Index | maximal_blocksize () const |
| Returns the maximal blocksize in the basis. More... | |
| std::string_view | name () const |
| Returns the name of the basis. More... | |
| Index | num_sectors () const |
| Returns the number of different sectors in this basis. More... | |
| operator SBasisId () const | |
| Implicit conversion to an SBasisId. More... | |
| bool | operator!= (SBasis const &other) const |
| Compares the identifiers of this basis with the other basis for inequality. More... | |
| bool | operator!= (SBasisId const &other) const |
| Compares the identifiers of this basis with the other basis for inequality. More... | |
| SBasis & | operator++ () |
| Increases the prime level. More... | |
| SBasis & | operator-- () |
| Decreases the prime level. More... | |
| SBasis & | operator= (SBasis &&)=default |
| Move assignment op. More... | |
| SBasis & | operator= (SBasis const &)=default |
| Copy assignment op. More... | |
| bool | operator== (SBasis const &other) const |
| Compares the identifiers of this basis with the other basis for equality. More... | |
| bool | operator== (SBasisId const &other) const |
| Compares the identifiers of this basis with the other basis for equality. More... | |
| SBasis & | prime (std::int8_t value=1) |
Increases the prime level by value. More... | |
| Index | reduced_size () const |
| Returns the reduced number of states in the basis (counting multiplicities once) More... | |
| std::string_view | rename (std::string_view name_) |
| Sets the name of the basis to something else. More... | |
| SBasis | renamed (std::string_view name) const |
Returns a copy of this with the name set to name_. More... | |
| SBasis | repro () const |
| "Reproduces" the basis. More... | |
| SBasis ()=default | |
| Default ctor, creates an empty unique basis. More... | |
| SBasis (Basis const &basis, std::string_view name_="autogen") | |
Standard ctor, takes an existing Basis and a nickname. More... | |
| SBasis (Direction dir_, std::string_view name_="undefined") | |
| Standard ctor, takes a direction and a basis nickname. More... | |
| SBasis (SBasis &&)=default | |
| Move ctor. More... | |
| SBasis (SBasis const &)=default | |
| Copy ctor. More... | |
| template<typename Archive > | |
| void | serialize (Archive &ar, unsigned int const in_version) |
| Boost serialisation. More... | |
| Direction | set_dir (Direction dir_) |
| Sets the direction of the basis, does not affect the identifiers. More... | |
| void | set_id (SBasisId const &v, bool const force=false) |
| Set the id to the specified object. More... | |
| void | set_ids (std::tuple< std::uint32_t, std::uint32_t, std::uint32_t > const &v, bool const force=false) |
| Sets the three identifying integers. More... | |
| Index | total_size () const |
| Returns the total number of states in the basis (counting multiplicities multiple times) More... | |
| SBasis & | unprime (std::int8_t value=1) |
Decreases the prime level by value. More... | |
Static Public Attributes | |
| static constexpr unsigned int | version = 2 |
| Boost serialisation version. More... | |
Private Types | |
| typedef std::unordered_map< Sector, Index > | Sectors |
| Data container type. More... | |
Private Attributes | |
| LimVec< char, 9 > | cname = {'u', 'n', 'd', 'e', 'f', 'i', 'n', 'e', 'd' } |
| Nickname of the basis. More... | |
| Direction | direc = Direction::Invalid |
| Direction of the basis. More... | |
| SBasisId | id |
| id of the basis. More... | |
| Sectors | sectors |
| Map of vectors and sizes. More... | |
Friends | |
| std::ostream & | operator<< (std::ostream &out, SBasis const &sb) |
| Outputs the basis. More... | |
A smart basis class.
This basis has a unique identifier (consisting three 32-bit integers) and a ‘nickname’ which can be used to refer to the basis temporarily and has a maximum length of nine characters. In addition, a prime level is carried around to temporarily ‘mask’ the basis during tensor-tensor contractions.
The nickname can be changed even if the basis itself is constant.
The basis stores all quantum number sectors with associated sizes, as such it fully defines the extend of any vector space.
1.9.1