sc::FermionBasicNCOper< 1, FString > Class Template Reference

Public Types
typedef FString::state_index_type	state_index_type

Public Member Functions
template<typename Int >
	FermionBasicNCOper (Int t, Int f)
size_t	to () const
	reports the state to which this operator places a particle More...
const std::array< state_index_type, 1 > &	cre () const
	reports the states in which particles are created More...
size_t	from () const
	reports the state from which this operator removes a particle More...
const std::array< state_index_type, 1 > &	ann () const
	reports the states in which particles are annihilated More...
void	apply (FString &os) const
	applies this operator to_ FermionOccupationNBitString os. More...
bool	apply_sign (FString &os) const
	same as apply(), but returns whether application operator changes the sign of the state; the sign changes if the number of occupied states "crossed" by the operator is odd More...
std::pair< bool, FString >	operator() (const FString &os) const
	similar to_ apply_sign(), but keeps the argument unchanged More...

Static Public Attributes
static const size_t	Rank = 1

Member Function Documentation

ann()

template<typename FString >

const std::array<state_index_type,1>& sc::FermionBasicNCOper< 1, FString >::ann ( ) const

inline

reports the states in which particles are annihilated

Returns

the states in which particles are annihilated

apply()

template<typename FString >

void sc::FermionBasicNCOper< 1, FString >::apply ( FString &  os ) const

inline

applies this operator to_ FermionOccupationNBitString os.

to_==from_ is allowed.

Parameters

os	the FermionOccupationNBitString object

Returns

FermionOccupationNBitString obtained by removing a particle from_ from_ and adding a particle to_ to_.

apply_sign()

template<typename FString >

bool sc::FermionBasicNCOper< 1, FString >::apply_sign ( FString &  os ) const

inline

same as apply(), but returns whether application operator changes the sign of the state; the sign changes if the number of occupied states "crossed" by the operator is odd

Parameters

os	the FermionOccupationNBitString object

Returns

true is the sign of the state changes

cre()

template<typename FString >

const std::array<state_index_type,1>& sc::FermionBasicNCOper< 1, FString >::cre ( ) const

inline

reports the states in which particles are created

Returns

the states in which particles are created

from()

template<typename FString >

size_t sc::FermionBasicNCOper< 1, FString >::from ( ) const

inline

reports the state from which this operator removes a particle

Returns

the state from which this operator removes a particle

operator()()

template<typename FString >

std::pair<bool,FString > sc::FermionBasicNCOper< 1, FString >::operator() ( const FString &  os ) const

inline

similar to_ apply_sign(), but keeps the argument unchanged

Parameters

os	the FermionOccupationNBitString object

Returns

new pair[sign_change,FermionOccupationNBitString]

References sc::FermionBasicNCOper< Nb, FString >::apply_sign().

to()

template<typename FString >

size_t sc::FermionBasicNCOper< 1, FString >::to ( ) const

inline

reports the state to which this operator places a particle

Returns

the state to which this operator places a particle

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

• src/lib/chemistry/qc/nbody/string.h