ImaginaryTimeEvolver

class ImaginaryTimeEvolver

Bases: ABC

Interface for Quantum Imaginary Time Evolution.

Methods

abstract evolve(evolution_problem)

Perform imaginary time evolution $\exp (-\tau H)|\mathrm{\Psi }⟩$.

Evolves an initial state $|\mathrm{\Psi }⟩$ 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