2913 - 使用 Qiskit 和人工智能优化您的量子电路.pdf

1、Optimize your quantum circuits with Qiskit and AIDavid KremerDavid KremerQuantum+AI IBMQuantum+AI IBM2Recap:quantum circuitsRecap:quantum circuitsQPUQuantum CircuitResultsIBM Quantum3But we cannot just“run”circuits on QPUsBut we cannot just“run”circuits on QPUsibm_pittsburghCircuit transpilationAbst

2、ract circuitISA circuitUses gates not allowed by the QPU(H,CX)Some 2-qubit gates are non-local IBM Quantum4Recap:what is Recap:what is Transpilation?“Transpilation is the process of rewriting a given input circuit to match the topology of a specific quantum device,and/or to optimize the circuit for

3、execution on quantum systems.”InitRoutingTranslationOptimizationSchedulingTypicaltranspilingpipelineIBM QuantumIBM Quantum5Good vs Bad Good vs Bad transpilationtranspilation:less gates is better:less gates is betterOriginal circuit:4 2q gates,4 2q layersQiskit Transpiler lvl0:13 2q gates,13 2q layer

4、sQiskit Transpiler lvl3:10 2q gates,6 2q layersNo noiseHigh noiseLow noise6Good Good transpilationtranspilation is challengingis challengingInitRoutingTranslationOptimizationSchedulingTypicaltranspilingpipelineRouting:Insert SWAPs to make a circuit compatible with a given coupling map.Circuit Synthe

5、sis:Generate a circuit that implements a given operator.Typically used in optimization by re-synthesizing parts of a circuit to achieve better CNOT count and/or depth.IBM Quantum7TranspilingTranspiling with AIwith AIWe want to provide“high quality”circuits in“reasonable”time in the form of Qiskit SD

6、K Transpiler passes.WhatWe apply Reinforcement Learning to different problems in Transpiling.HowRL can help us find a good balance between optimality,speed and storage.Whyhttps:/arxiv.org/abs/2405.13196IBM Quantum8What is What is Reinforcement Learning?IBM Quantum9Reinforcement Learning is a family