Boson Sampling State

class SamplingState(d: int, calculator: BaseCalculator, config: Config | None = None)

Parameters:

• d (int) – The number of modes.

• calculator (BaseCalculator) – Instance containing calculation functions.

• config (Config) – Instance containing constants for the simulation.

validate() → None

Validates the currect state.

Raises:

InvalidState – If the interferometer matrix is non-unitary.

property d: int

The number of modes, on which the state is defined.

property particle_number: int

The number of particles in the system.

get_particle_detection_probability(occupation_number: ndarray) → float

Returns the particle number detection probability using the occupation number specified as a parameter.

Parameters:

occupation_number (tuple) – Tuple of natural numbers representing the number of particles in each mode.

Returns:

The probability of detection.

Return type:

float

property fock_probabilities: ndarray

Returns the particle detection probabilities.

Note

The ordering of the Fock basis is increasing with particle numbers, and in each particle number conserving subspace, lexicographic ordering is used.

Returns:

The particle detection probabilities.

Return type:

numpy.ndarray