论文标题
与OpenPulse的近期算法优化的量子汇编
Optimized Quantum Compilation for Near-Term Algorithms with OpenPulse
论文作者
论文摘要
传统上，量子计算机是由程序员在基于门的指令集的粒度下操作的。但是，量子计算机的实际设备级控制是通过模拟脉冲执行的。我们介绍了一个编译器，该编译器利用在此微体系层面上进行直接控制以实现量子程序的重大改进。与量子最佳控制不同，我们的方法是由现有门校准进行引导的，所得的脉冲很简单。我们的技术适用于任何量子计算机，并且在当前设备上可实现。我们通过在IBM量子计算机上使用数百万个实验镜头来验证我们的技术，该计算机通过OpenPulse Control界面进行了控制。对于代表性的基准测试，我们的脉冲控制技术相对于基于标准的基于栅极的编译，我们的脉冲控制技术同时达到了1.6倍的错误率和更快的执行时间。在量子计算的近期时代，这些改进至关重要，量子计算是由错误率和量子寿命所瓶装的。
Quantum computers are traditionally operated by programmers at the granularity of a gate-based instruction set. However, the actual device-level control of a quantum computer is performed via analog pulses. We introduce a compiler that exploits direct control at this microarchitectural level to achieve significant improvements for quantum programs. Unlike quantum optimal control, our approach is bootstrapped from existing gate calibrations and the resulting pulses are simple. Our techniques are applicable to any quantum computer and realizable on current devices. We validate our techniques with millions of experimental shots on IBM quantum computers, controlled via the OpenPulse control interface. For representative benchmarks, our pulse control techniques achieve both 1.6x lower error rates and 2x faster execution time, relative to standard gate-based compilation. These improvements are critical in the near-term era of quantum computing, which is bottlenecked by error rates and qubit lifetimes.
