论文标题
混合量子古典算法和缓解量子误差
Hybrid quantum-classical algorithms and quantum error mitigation
论文作者
论文摘要
量子计算机可以利用希尔伯特空间，其尺寸随量子数的数量而成倍增加。在实验中，Google团队最近使用嘈杂的中间尺度量子（NISQ）设备具有超过50 QUBITS来实现量子至上。但是，关于在NISQ设备上可以实现的问题的问题仍未得到充分探索，发现此类设备的有用任务是一个非常有趣的话题。通过将量子计算机与经典计算机相结合，认为混合量子量子算法非常适合在NISQ设备上执行，并有望成为量子计算的第一个有用应用。同时，减轻量子处理器错误对于获得可靠的结果也至关重要。在本文中，我们回顾了混合量子古典算法和缓解量子误差技术的基本结果。由于使用NISQ设备的量子计算是一个积极发展的领域，因此我们希望该评论是未来研究的有用基础。
Quantum computers can exploit a Hilbert space whose dimension increases exponentially with the number of qubits. In experiment, quantum supremacy has recently been achieved by the Google team by using a noisy intermediate-scale quantum (NISQ) device with over 50 qubits. However, the question of what can be implemented on NISQ devices is still not fully explored, and discovering useful tasks for such devices is a topic of considerable interest. Hybrid quantum-classical algorithms are regarded as well-suited for execution on NISQ devices by combining quantum computers with classical computers, and are expected to be the first useful applications for quantum computing. Meanwhile, mitigation of errors on quantum processors is also crucial to obtain reliable results. In this article, we review the basic results for hybrid quantum-classical algorithms and quantum error mitigation techniques. Since quantum computing with NISQ devices is an actively developing field, we expect this review to be a useful basis for future studies.
