通过选择性雷德贝格泵浦实现中性原子的整体交换和受控交换门

IF 5.8 2区 物理与天体物理 Q1 OPTICS
C. F. Sun, X. Y. Chen, W. L. Mu, G. C. Wang, J. B. You, X. Q. Shao
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引用次数: 0

摘要

整体量子计算因其抗错性和执行通用量子计算的能力,为量子计算提供了一个前景广阔的范例。在此,我们基于选择性雷德贝格泵机制,提出了一种在中性原子系统中快速实现全量子交换门的方案。通过采用随时间变化的软控制,与随时间变化的驱动相比,即使在更高的驱动强度下,我们也能有效减轻非共振项的影响。这种方法加速了逻辑门的合成,并被动地降低了退相干效应。此外,通过引入额外的原子并应用适当的驱动场,我们的方案可以直接扩展到实现三量子位受控交换门。这一进步使它成为中性原子系统中量子态制备、量子开关和可变量子算法的重要工具。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Holonomic swap and controlled-swap gates of neutral atoms via selective Rydberg pumping

Holonomic quantum computing offers a promising paradigm for quantum computation due to its error resistance and the ability to perform universal quantum computations. Here, we propose a scheme for the rapid implementation of a holonomic swap gate in neutral atomic systems, based on the selective Rydberg pumping mechanism. By employing time-dependent soft control, we effectively mitigate the impact of off-resonant terms even at higher driving intensities compared to time-independent driving. This approach accelerates the synthesis of logic gates and passively reduces the decoherence effects. Furthermore, by introducing an additional atom and applying the appropriate driving field, our scheme can be directly extended to implement a three-qubit controlled-swap gate. This advancement makes it a valuable tool for quantum state preparation, quantum switches, and a variational quantum algorithm in neutral atom systems.

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来源期刊
EPJ Quantum Technology
EPJ Quantum Technology Physics and Astronomy-Atomic and Molecular Physics, and Optics
CiteScore
7.70
自引率
7.50%
发文量
28
审稿时长
71 days
期刊介绍: Driven by advances in technology and experimental capability, the last decade has seen the emergence of quantum technology: a new praxis for controlling the quantum world. It is now possible to engineer complex, multi-component systems that merge the once distinct fields of quantum optics and condensed matter physics. EPJ Quantum Technology covers theoretical and experimental advances in subjects including but not limited to the following: Quantum measurement, metrology and lithography Quantum complex systems, networks and cellular automata Quantum electromechanical systems Quantum optomechanical systems Quantum machines, engineering and nanorobotics Quantum control theory Quantum information, communication and computation Quantum thermodynamics Quantum metamaterials The effect of Casimir forces on micro- and nano-electromechanical systems Quantum biology Quantum sensing Hybrid quantum systems Quantum simulations.
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