FermiString

An ordered product of fermionic ladder operators.

Attributes

attributeexpression

= expression.expression

func__init__(self, expression) -> None

Initialize the Fermi string.

paramself

paramexpressionSequence[tuple[int, str]] | FermiString

A sequence of (mode index, '+' or '-') pairs, with non-negative indices, or another FermiString to copy.

Returns

None

func__repr__(self) -> str

Return a string representation of the Fermi string.

paramself

Returns

str

func__eq__(self, value) -> bool

Check equality of two FermiStrings.

paramself

paramvalueobject

Returns

bool

func__hash__(self) -> int

Return a hash of the Fermi string.

paramself

Returns

int