Struct SpinfulFermionBasisBuilder 

pub struct SpinfulFermionBasisBuilder { /* private fields */ }

Builder for full or number-conserving two-species fermion spaces.

Implementations

impl SpinfulFermionBasisBuilder

pub const fn particles_up(self, particles: usize) -> Self

Restrict only the up-species particle number.

pub const fn particles_down(self, particles: usize) -> Self

Restrict only the down-species particle number.

pub fn particles(self, up: usize, down: usize) -> Self

Restrict both species to one fixed (up, down) sector.

pub fn particle_sectors( self, sectors: impl IntoIterator<Item = (usize, usize)>, ) -> Self

Select a union of fixed (N_up, N_down) sectors.

pub fn local_occupation_constraint( self, constraint: LocalOccupationConstraint, ) -> Self

Restrict the allowed site-local occupation masks for the two binary fermion species.

pub fn build(self) -> Result<SpinfulFermionBasis1D>

Validate species sectors and enumerate the spinful Fock basis.

Trait Implementations

impl Clone for SpinfulFermionBasisBuilder

fn clone(&self) -> SpinfulFermionBasisBuilder

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for SpinfulFermionBasisBuilder

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.