iqm.benchmarks.compressive_gst.mgst.optimization

Functions related to optimization on manifolds.

Functions

Hess_evals(K, E, rho, y, J)	Compute eigenvalues of the Euclidean Hessian.
dU_gauge(X, E, rho, X_target, E_target, ...)	Compute the derivative of the gauge transformation objective function with respect to given unitary U.
eigy_expm(A)	Custom Matrix exponential using the eigendecomposition of numpy's linalg.
gauge_opt(X, E, rho, X_target, E_target, ...)	Optimize gauge transformation to align estimates with target values.
lineobjf_A_B(a, v, delta_v, X, C, y, J, argument)	Compute objective function at translated position.
lineobjf_A_geodesic(a, H, X, A, rho, J, y[, mle])	Compute objective function at position on geodesic for POVM parametrization.
lineobjf_B_geodesic(a, H, X, E, B, J, y[, mle])	Compute objective function at position on geodesic for the initial state parametrization.
lineobjf_gauge_geodesic(a, Delta, U, gates, ...)	Compute objective function at position on geodesic for gauge optimization Parameters.
lineobjf_isom_geodesic(a, H, K, E, rho, J, ...)	Compute objective function at position on geodesic.
tangent_proj(K, Z, d, rK)	Projection onto the local tangent space.
update_A_geodesic(A, H, a)	Compute a new point on the geodesic for the POVM parametrization.
update_B_geodesic(B, H, a)	Compute a new point on the geodesic for the initial state parametrization.
update_K_geodesic(K, H, a)	Compute a new point on the geodesic.