Non-adiabatic holonomic quantum computation in linear system-bath coupling.
Non-adiabatic holonomic quantum computation in linear system-bath coupling.
复制标题
线性系统浴耦合中的非绝热完整量子计算
DOI：
10.1038/srep20292
复制
发表时间：
2016-02-05
影响因子：
4.6
通讯作者：
Xue K
中科院分区：
文献类型：
--
作者：
Sun C;Wang G;Wu C;Liu H;Feng XL;Chen JL;Xue K
无退相干子空间中的非绝热完整量子计算保护量子信息不受控制不精确和退相干的影响。对于每个量子比特都有自己的量子浴的非集体退相干，我们给出了两个不可交换的完整单量子比特门和一个完整非平凡的两量子比特门的实现，它们在退耦合群的无退相干子空间中构成了一个非绝热完整量子门的通用集合，编码率为.该方案对控制不精确和非集体退相干具有鲁棒性，其非绝热特性确保了更少的操作时间。我们证明，我们提出的方案可以实现仅利用两个量子比特的相互作用，而不是多量子比特的相互作用。我们的结果降低了完整量子计算在实验中实际实现的复杂性。我们还讨论了我们的方案在耦合微腔中的物理实现。
Non-adiabatic holonomic quantum computation in decoherence-free subspaces protects quantum information from control imprecisions and decoherence. For the non-collective decoherence that each qubit has its own bath, we show the implementations of two non-commutable holonomic single-qubit gates and one holonomic nontrivial two-qubit gate that compose a universal set of non-adiabatic holonomic quantum gates in decoherence-free-subspaces of the decoupling group, with an encoding rate of. The proposed scheme is robust against control imprecisions and the non-collective decoherence and its non-adiabatic property ensures less operation time. We demonstrate that our proposed scheme can be realized by utilizing only two-qubit interactions rather than many-qubit interactions. Our results reduce the complexity of practical implementation of holonomic quantum computation in experiments. We also discuss the physical implementation of our scheme in coupled microcavities.