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arXiv · 2010.14704

Multiple-qubit Rydberg quantum logic gate via dressed-states scheme

Yucheng He·Jing-Xin Liu·F. -Q. Guo·Lei-Lei Yan·Ronghui Luo·Erjun Liang·Shi-Lei Su·M. Feng
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Abstract

We present a scheme to realize multiple-qubit quantum state transfer and quantum logic gate by combining the advantages of Vitanov-style pulses and dressed-state-based shortcut to adiabaticity (STA) in Rydberg atoms. The robustness of the scheme to spontaneous emission can be achieved by reducing the population of Rydberg excited states through the STA technology. Meanwhile, the control errors can be minimized through using the well-designed pulses. Moreover, the dressed-state method applied in the scheme makes the quantum state transfer more smoothly turned on or off with high fidelity and also faster than traditional shortcut to adiabaticity methods. By using Rydberg antiblockade (RAB) effect, the multiple-qubit Toffoli gate can be constructed under a general selection conditions of the parameters.

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Yucheng He, Jing-Xin Liu, F. -Q. Guo, Lei-Lei Yan, Ronghui Luo, Erjun Liang, Shi-Lei Su, M. Feng. 2020-10-28. Multiple-qubit Rydberg quantum logic gate via dressed-states scheme. https://arxiv.org/abs/2010.14704

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