论文标题
具有固有的鲁棒性且没有辅助控制的捷径
Shortcuts to Adiabaticity with Inherent Robustness and without Auxiliary Control
论文作者
论文摘要
绝热性（STA）的快捷方式是实现量子绝热过程的最终状态演变的快速方法。我们开发了一种通用理论来构建一种新型的STA，仅通过对原始绝热哈密顿量的绝热路径的点进行采样。与以前的方法相反，我们的方法不需要任何其他控制资源，具有固有的鲁棒性，并且不使用任何复杂的单一转换。基于路径采样，所得的STA协议很简单，可以避免实施挑战的绝热路径点。作为我们理论的应用，我们证明了通过新颖的稳健三级控制以及在绝热量子计算模型中可靠且快速的基态进化来降低耗散和降低噪声的影响。我们的理论为通用量子系统设计了强大而快速控制的方法提供了一条新的途径。
Shortcuts to adiabaticity (STA) are fast methods to realize the same final state evolution of quantum adiabatic process. We develop a general theory to construct a new kind of STA by solely sampling the points of the adiabatic path of the original adiabatic Hamiltonian. In contrast to previous methods, our approach does not require any additional control resources, has inherent robustness, and does not use any complicated unitary transformation. Based on path sampling, the resulting STA protocols are simple and can avoid points of adiabatic path that are challenging to implement. As applications of our theory, we demonstrate reduction of the effects of both dissipation and dephasing noise by a novel robust three-level control, as well as reliable and fast ground state evolution in an adiabatic quantum computing model. Our theory offers a new route to design robust and fast control methods for general quantum systems.
