Journal
QUANTUM SCIENCE AND TECHNOLOGY
Volume 3, Issue 2, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/2058-9565/aaa331
Keywords
quantum computing; quantum processor; compilation; QAOA; optimization; quantum gates; planning
Funding
- NASA Advanced Exploration Systems program
- NASA Ames Research Center [NNX12AK33A, NNA16BD14C]
- NASA [NNX12AK33A, 43471] Funding Source: Federal RePORTER
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To run quantum algorithms on emerging gate-model quantum hardware, quantum circuits must be compiled to take into account constraints on the hardware. For near-term hardware, with only limited means to mitigate decoherence, it is critical to minimize the duration of the circuit. We investigate the application of temporal planners to the problem of compiling quantum circuits to newly emerging quantum hardware. While our approach is general, we focus on compiling to superconducting hardware architectures with nearest neighbor constraints. Our initial experiments focus on compiling Quantum Alternating Operator Ansatz (QAOA) circuits whose high number of commuting gates allow great flexibility in the order in which the gates can be applied. That freedom makes it more challenging to find optimal compilations but also means there is a greater potential win from more optimized compilation than for less flexible circuits. We map this quantum circuit compilation problem to a temporal planning problem, and generated a test suite of compilation problems for QAOAcircuits of various sizes to a realistic hardware architecture. Wereport compilation results from several state-of-the-art temporal planners on this test set. This early empirical evaluation demonstrates that temporal planning is a viable approach to quantum circuit compilation.
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