arXivDaily arXiv每日学术速递 周一至周五更新
看起来今天可以划水了
arXiv 2005.13392quant-phcs.NAmath.NA
收藏

低精度算法模拟量子线路的局限性

The limits of quantum circuit simulation with low precision arithmetic

Santiago I. Betelu

摘要:

研究了薛定谔公式和低精度算法模拟量子线路的局限性。目标是估计在涉及随机的、最大纠缠的量子态的模拟中可以节省多少内存。为每个量子幅度定义了$B$位的算术极坐标表示,并开发了归一化过程以最小化舍入误差。然后建立了一个模型来量化$Q$量子位和$G$门电路上的累积误差。取决于该制度的电路操作,该模型产生明确的表达式,可以模拟舍入误差之前,占主导地位的计算的最大数量的有效门。结果与随机电路和量子傅里叶变换说明。

英文摘要:

This is an investigation of the limits of quantum circuit simulation with Schrodinger's formulation and low precision arithmetic. The goal is to estimate how much memory can be saved in simulations that involve random, maximally entangled quantum states. An arithmetic polar representation of $B$ bits is defined for each quantum amplitude and a normalization procedure is developed to minimize rounding errors. Then a model is developed to quantify the cumulative errors on a circuit of $Q$ qubits and $G$ gates. Depending on which regime the circuit operates, the model yields explicit expressions for the maximum number of effective gates that can be simulated before rounding errors dominate the computation. The results are illustrated with random circuits and the quantum Fourier transform.

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。

↑