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arXiv 2006.04650quant-ph
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量子计算机上制备量子多体基态的资源估计

Resource estimate for quantum many-body ground-state preparation on a quantum computer

Jessica Lemieux, Guillaume Duclos-Cianci, David Sénéchal, David Poulin

摘要:

我们估计了在中等规模的量子计算机上制备量子多体系统的基态所需的资源。使用量子多体方法和分析上界的组合使这种估计成为可能。我们的程序也可以用于优化特定问题实例的某些设计参数。最后,我们提出了一种改进的量子态制备方法并进行了基准测试。我们发现,它减少了电路的T-深度的一个因素一样大的$10^6$为中等大小的晶格。

英文摘要:

We estimate the resources required to prepare the ground state of a quantum many-body system on a quantum computer of intermediate size. This estimate is made possible using a combination of quantum many-body methods and analytic upper bounds. Our routine can also be used to optimize certain design parameters for specific problem instances. Lastly, we propose and benchmark an improved quantum state preparation procedure. We find that it reduces the circuit T-depth by a factor as large as $10^6$ for intermediate-size lattices.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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