Two-qubit gates using adiabatic passage of the Stark-tuned Förster resonances in Rydberg atoms

Beterov, I.I.; Saffman, M.; Yakshina, E.A.; Tetryakov, D.B.; Entin, V. M.; Bergamini, S.; Kutsetsova, E.A. and Ryabtsev, I.I. (2016). Two-qubit gates using adiabatic passage of the Stark-tuned Förster resonances in Rydberg atoms. Physical Review A, 94(6), article no. 062307.

DOI: https://doi.org/10.1103/PhysRevA.94.062307

Abstract

We propose schemes of controlled-Z and controlled-not gates with ultracold neutral atoms based on deterministic phase accumulation during double adiabatic passage of the Stark-tuned Förster resonance of Rydberg states. The effect of deterministic phase accumulation during double adiabatic passage in a two-level quantum system has been analyzed in detail. Adiabatic rapid passage using nonlinearly chirped pulses with rectangle intensity profile has been discussed. Nonlinear time dependence of the energy detuning from the Förster resonance is used to achieve a high fidelity of population transfer between Rydberg states. Fidelity of two-qubit gates has been studied with an example of the 90 S +96 S -->90 P +95 P Stark-tuned Förster resonance in Cs Rydberg atoms.

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About

• Item ORO ID
• 48247
• Item Type
• Journal Item
• ISSN
• 2469-9934
• Project Funding Details

• Funded Project Name	Project ID	Funding Body
  Testing the computational power of discord (SP-12-065-SB)	EP/K022938/1	EPSRC (Engineering and Physical Sciences Research Council)

• Academic Unit or School
• Faculty of Science, Technology, Engineering and Mathematics (STEM) > Physical Sciences
  Faculty of Science, Technology, Engineering and Mathematics (STEM)
• Research Group
• Physics
• Copyright Holders
• © 2016: American Physical Society
• Depositing User
• Silvia Bergamini