Struct PhotonBasis 

pub struct PhotonBasis<Matter>
where
    Matter: Basis,
    Matter::State: Hash,
{ /* private fields */ }

Matter basis tensored with one truncated photon mode, optionally at fixed total excitation number.

Implementations

impl<Matter> PhotonBasis<Matter>

where Matter: Basis, Matter::State: Hash + 'static,

pub fn new(matter: Matter, photon: BosonBasis1D) -> Result<Self>

pub fn fixed_total_excitations<F>( matter: Matter, photon: BosonBasis1D, total: usize, matter_excitations: F, ) -> Result<Self>

where F: Fn(Matter::State) -> usize,

pub const fn total_excitations(&self) -> Option<usize>

pub fn matter(&self) -> &Matter

pub fn photon(&self) -> &BosonBasis1D

Trait Implementations

impl<Matter> Basis for PhotonBasis<Matter>

where Matter: Basis, Matter::State: Hash + 'static,

type State = (<Matter as Basis>::State, u128)

Integer-like state representation used by this basis.

fn len(&self) -> usize

Return the number of vectors in the basis.

fn state(&self, index: usize) -> Result<Self::State>

Return the encoded state at a basis index.

fn index(&self, state: Self::State) -> Result<usize>

Locate an encoded state in the basis.

fn apply_local( &self, state: Self::State, operator: &str, sites: &[usize], ) -> Result<Option<(Self::State, Complex64)>>

Apply one local operator string to one encoded state.

fn apply_local_transitions( &self, state: Self::State, operator: &str, sites: &[usize], ) -> Result<LocalTransitions<Self::State>>

Applies a local operator and returns every nonzero destination.

fn visit_local_unreduced_transitions<F>( &self, state: Self::State, operator: &str, sites: &[usize], visit: F, ) -> Result<()>

where F: FnMut(Self::State, Complex64) -> Result<()>,

Streams unreduced destinations directly to a consumer.

fn operator_preserves_particle_sector(&self, operator: &str) -> Result<bool>

Whether a local operator string preserves the particle-sector constraints represented by this basis. Unconstrained and custom bases accept every syntactically valid string by default.

fn apply_local_unreduced_transitions( &self, state: Self::State, operator: &str, sites: &[usize], ) -> Result<LocalTransitions<Self::State>>

Local action before symmetry-sector reduction. Cross-sector builders use this path and let the target basis perform the reduction.

fn transition_orbit_size(&self, _state: Self::State) -> Result<usize>

Orbit size of a canonical source state used in projector normalization.

fn reduction_image( &self, state: Self::State, ) -> Result<Option<ReductionImage<Self::State>>>

Return the canonical reduction metadata for a physical state.

fn reduce_transition( &self, state: Self::State, source_orbit_size: usize, ) -> Result<Option<(Self::State, Complex64)>>

Map an unreduced physical target state into this basis.

fn index_transition( &self, state: Self::State, source_orbit_size: usize, ) -> Result<Option<(usize, Complex64)>>

Reduces a physical target and locates its row in one operation.

fn operator_preserves_particle_sector_on_sites( &self, operator: &str, _sites: &[usize], ) -> Result<bool>

Site-aware particle-sector check for bases whose local labels encode species as well as position.

fn is_empty(&self) -> bool

Return whether the basis contains no vectors.