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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.

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DOI (Digital Object Identifier) Link: https://doi.org/10.1103/PhysRevA.94.062307
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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.

Item Type: Journal Item
Copyright Holders: 2016: American Physical Society
ISSN: 2469-9934
Project Funding Details:
Funded Project NameProject IDFunding Body
Testing the computational power of discord (SP-12-065-SB)EP/K022938/1EPSRC (Engineering and Physical Sciences Research Council)
Academic Unit/School: Faculty of Science, Technology, Engineering and Mathematics (STEM) > Physical Sciences
Faculty of Science, Technology, Engineering and Mathematics (STEM)
Interdisciplinary Research Centre: Centre for Earth, Planetary, Space and Astronomical Research (CEPSAR)
Item ID: 48247
Depositing User: Silvia Bergamini
Date Deposited: 20 Jan 2017 15:59
Last Modified: 25 Jan 2017 14:59
URI: http://oro.open.ac.uk/id/eprint/48247
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