Pachniak E, Malinovskaya SA. Creation of quantum entangled states of Rydberg atoms via chirped adiabatic passage.
Sci Rep 2021;
11:12980. [PMID:
34155254 PMCID:
PMC8217571 DOI:
10.1038/s41598-021-92325-6]
[Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Accepted: 06/07/2021] [Indexed: 11/28/2022] Open
Abstract
Entangled states are crucial for modern quantum enabled technology which makes their creation key for future developments. In this paper, a robust quantum control methodology is presented to create entangled states of two typical classes, the W and the Greenberger–Horne–Zeilinger (GHZ). It was developed from the analysis of a chain of alkali atoms \documentclass[12pt]{minimal}
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\begin{document}$$^{87}Rb$$\end{document}87Rb interaction with laser pulses, which leads to the two-photon transitions from the ground to the Rydberg states with a predetermined magnetic quantum number. The methodology is based on the mechanism of the two-photon excitation, adiabatic for the GHZ and non-adiabatic for the W state, induced by the overlapping chirped pulses and governed by the Rabi frequency, the one-photon detuning, and the strength of the Rydberg–Rydberg interactions.
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