ImaginaryVariationalPrinciple#

class qiskit.algorithms.time_evolvers.variational.ImaginaryVariationalPrinciple(qgt, gradient)[source]#

Bases: VariationalPrinciple, ABC

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.