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arXiv quant-ph/9903055quant-ph
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量子计算机上的高阶模拟方法

Higher Order Methods for Simulations on Quantum Computers

A. T. Sornborger, E. D. Stewart

摘要:

为了在量子计算机上有效地实现用于量子模拟的多量子比特门,我们开发并提出了重新表达exp[-i(H_1 + H_2 +.)Δt]作为因子exp[-iH_1 Δt],exp[-iH_2 Δt],.的乘积。其精确到Δt的三阶或四阶。我们推导出的方法是辛方法的扩展形式,也可以用于经典计算机上经典Hamilton量的积分。我们得到积分和无理数的方法,并找到在这两种情况下最有效的方法。

英文摘要:

To efficiently implement many-qubit gates for use in quantum simulations on quantum computers we develop and present methods reexpressing exp[-i (H_1 + H_2 + ...) Δt] as a product of factors exp[-i H_1 Δt], exp[-i H_2 Δt], ... which is accurate to 3rd or 4th order in Δt. The methods we derive are an extended form of symplectic method and can also be used for the integration of classical Hamiltonians on classical computers. We derive both integral and irrational methods, and find the most efficient methods in both cases.

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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