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Suzuki

class Suzuki(reps=1, order=2)

GitHub

Bases: qiskit.opflow.evolutions.trotterizations.trotterization_base.TrotterizationBase

Suzuki Trotter expansion, composing the evolution circuits of each Operator in the sum together by a recursive “bookends” strategy, repeating the whole composed circuit reps times.

Detailed in https://arxiv.org/pdf/quant-ph/0508139.pdf.

Parameters

  • reps (int) – The number of times to repeat the expansion circuit.
  • order (int) – The order of the expansion to perform.

Methods Defined Here

convert

Suzuki.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.


Attributes

order

returns order

Return type

int

reps

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

Return type

int

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