peropq.unconstrained_variational_unitary¶

Classes¶

class representing the variational unitary ansataz, with no prior constraint on the variational parameters.

class peropq.unconstrained_variational_unitary.UnconstrainedVariationalUnitary¶

class representing the variational unitary ansataz, with no prior constraint on the variational parameters.

update_theta(new_array)¶

Update theta.

Parameters:: new_array (numpy.typing.NDArray) – the new array containing the variational parameters. It’s shape must be (R, n_terms).
Return type:: None

flatten_theta(theta)¶

Returns an input theta as flatten depth*n_terms array. Useful to pass to a minimization function.

unflatten_theta(flat_theta)¶

Returns the flattened variational parameters as an array with shape (depth,n_terms).

get_flattened_theta()¶

Return the flatten current variational parameters.

get_initial_trotter_vector()¶

Get the variational parameters corresponding to the Trotterization. Useful to initialize the optimization.

set_theta_to_trotter()¶

Sets the variational parameters to the Trotter parameters.