FermionicEvolutionProblem¶

class FermionicEvolutionProblem(system, initial_state, evolution_times, observable)[source]¶

Problem class corresponding to evaluating an observable of a fermionic system after a time evolution under a hamiltonian from an initial state in an occupation number representation.

Initialize a fermionic time evolution problem.

Parameters:

system (FermionicLattice) – The fermionic system under which the initial state will evolve.
initial_state (FermionicState) – The fermionic state at time t=0.
evolution_times (Union[float, List[float]]) – List of times (or single time) after which the observable is measured.
observable (FermionicOp) – The observable to measure after the time evolution, given as a FermionicOp. The observable must be diagonal in the fermionic occupation number basis.

Raises:

QiskitColdAtomError –

If the sizes of the system, initial state and the observable do not match. - If the observables is not diagonal in the fermionic occupation number basis

Attributes

`FermionicEvolutionProblem.evolution_times`	Return the evolution times to simulate.
`FermionicEvolutionProblem.initial_state`	Return the initial state of the system.
`FermionicEvolutionProblem.observable`	Return the observable as a FermionicOp.
`FermionicEvolutionProblem.system`	Return the system of the problem.

Methods

FermionicEvolutionProblem.circuits(initial_state)

The problem embedded in a quantum circuit.