template class QPanda::FermionOp

Overview

Fermion operator class. More…

Detailed Documentation

Fermion operator class.

Construction

Constructor of FermionOp class.

Methods

Compute and return the normal ordered form of a FermionOperator.

In our convention, normal ordering implies terms are ordered from highest tensor factor (on left) to lowest (on right). In addition: a^dagger comes before a

Returns:

FermionOp the normal ordered form of a FermionOperator

get the max index

Returns:

size_t the max index

Judge whether it is empty.

Returns:

bool if data is empty, return true, or else return false

data to string

Returns:

std::string convert data val to string

set error threshold

Parameters:

double

threshold val

get error threshold

Returns:

double return the error threshold val

get data

Returns:

FermionData return fermion data

overload +

Returns:

FermionOp return (FermionOp_1 + FermionOp_2)

overload -

Returns:

FermionOp return (FermionOp_1 - FermionOp_2)

overload *

Returns:

FermionOp return (FermionOp_1 * FermionOp_2)

overload +=

Returns:

FermionOp & return (FermionOp_1 += FermionOp_2)

overload -=

Returns:

FermionOp & return (FermionOp_1 -= FermionOp_2)

overload *=

Returns:

FermionOp & return (FermionOp_1 *= FermionOp_2)