Fast and dephasing-tolerant preparation of steady Knill-Laflamme-Milburn states via dissipative Rydberg pumping

Fast and dephasing-tolerant preparation of steady Knill-Laflamme-Milburn states via dissipative Rydberg pumping
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通过耗散里德堡泵浦快速且耐相移地制备稳定的 Knill-Laflamme-Milburn 态

DOI:
10.1103/physreva.103.052402
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发表时间:
2021-05
期刊:
影响因子:
2.9
通讯作者:
Zheng Shi-Biao
Zheng Shi-Biao
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Zheng Ri-Hua;Xiao Yang;Su S-L;Chen Ye-Hong;Shi Zhi-Cheng;Song Jie;Xia Yan;Zheng Shi-Biao

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提出了一种快速、容相位下降的方案,利用耗散方法在里德伯原子对之间制备稳定的Knill-Laflamme-Milburn(KLM)态.在该方案中,任意的初始态都可以被设计成高保真度(99.24%)的KLM态。与大多数基于Rydberg耗散动力学的方案相比,由于使用了强共振偶极-偶极相互作用,我们的方案可以显着减少准备稳态的时间。此外,该方案可以有效地抑制原子间距离波动引起的里德堡原子的失相误差,这可能会严重破坏所需的系统动力学。因此,目前的计划是有趣的,值得进一步的实验研究,以丰富基于里德伯原子的耗散动力学。
We propose a fast and dephasing-tolerant scheme for the preparation of steady Knill-Laflamme-Milburn (KLM) state between a pair of Rydberg atoms by dissipation. In this scheme, arbitrary initial state can be engineered to the KLM state with high fidelity (99.24%). Compared to most schemes based on Rydberg dissipation dynamics, the time to prepare steady state can be significantly reduced in our schemedue to the use of strong resonant dipole-dipole interactions. In addition, the scheme can effectively suppress the dephasing error of the Rydberg atoms caused by interatomic distance fluctuations, which may severely disrupt the desired systematic dynamics. Thus the present scheme is of interest and deserves further experimental investigation to enrich the dissipation dynamics based on the Rydberg atoms.
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