ImaginaryVariationalPrinciple

class qiskit.algorithms.time_evolvers.variational.ImaginaryVariationalPrinciple(qgt, gradient)

Bases: VariationalPrinciple, ABC(opens in a new tab)

Abstract class for an Imaginary Variational Principle. The imaginary variant means that we consider imaginary time dynamics.

Parameters

• qgt (BaseQGT) – Instance of a class used to compute the GQT.
• gradient (BaseEstimatorGradient) – Instance of a class used to compute the state gradient.