ImaginaryTimeEvolver

class ImaginaryTimeEvolver

Bases: ABC

Interface for Quantum Imaginary Time Evolution.

Methods

abstract evolve(evolution_problem)

Perform imaginary time evolution \(\exp(-\tau H)|\Psi\rangle\).

Evolves an initial state \(|\Psi\rangle\) for an imaginary time \(\tau\) under a Hamiltonian \(H\), as provided in the evolution_problem.

Parameters:

evolution_problem (TimeEvolutionProblem) – The definition of the evolution problem.

Returns:

Evolution result which includes an evolved quantum state.

Return type:

TimeEvolutionResult