quara.objects.state_ensemble module

class StateEnsemble(states, prob_dist, eps_zero=1e-08)[source]

Bases: quara.objects.qoperation.QOperation

Constructor

Parameters

  • c_sys (CompositeSystem) – CompositeSystem of this QOperation.

  • is_physicality_required (bool, optional) – whether this QOperation is physicality required, by default True

  • is_estimation_object (bool, optional) – whether this QOperation is estimation object, by default True

  • on_para_eq_constraint (bool, optional) – whether this QOperation is on parameter equality constraint, by default True

  • on_algo_eq_constraint (bool, optional) – whether this QOperation is on algorithm equality constraint, by default True

  • on_algo_ineq_constraint (bool, optional) – whether this QOperation is on algorithm inequality constraint, by default True

  • mode_proj_order (str, optional) – the order in which the projections are performed, by default “eq_ineq”

  • eps_proj_physical (float, optional) – epsiron that is projection algorithm error threshold for being physical, by default get_atol() / 10.0

  • eps_truncate_imaginary_part (float, optional) – threshold to truncate imaginary part, by default get_atol()

  • states (List[quara.objects.state.State]) –

  • prob_dist (quara.objects.multinomial_distribution.MultinomialDistribution) –

  • eps_zero (Union[float, numpy.float64]) –

Raises

ValueError – eps_proj_physical is negative.

property eps_zero
property prob_dist
state(outcome)[source]
Parameters

outcome (Union[int, Tuple[int]]) –

property states