qiskit.opflow.evolutions.Trotter

class Trotter(reps=1)

Simple Trotter expansion, composing the evolution circuits of each Operator in the sum together reps times and dividing the evolution time of each by reps.

Parameters

reps (int) – The number of times to repeat the Trotterization circuit.

__init__(reps=1)

Parameters

reps (int) – The number of times to repeat the Trotterization circuit.

Methods

__init__([reps])	type reps int
convert(operator)	Convert a SummedOp into a ComposedOp or CircuitOp representing an approximation of e^-i*``op_sum``.

Attributes

order	returns order
reps	The number of repetitions to use in the Trotterization, improving the approximation accuracy.

convert(operator)

Convert a SummedOp into a ComposedOp or CircuitOp representing an approximation of e^-i*``op_sum``.

Parameters

operator (OperatorBase) – The SummedOp to evolve.

Return type

OperatorBase

Returns

The Operator approximating op_sum’s evolution.

Raises

TypeError – A non-SummedOps Operator is passed into convert.

property order

returns order

Return type

int

property reps

The number of repetitions to use in the Trotterization, improving the approximation accuracy.

Return type

int