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Quantum gates in mesoscopic atomic ensembles based on adiabatic passage and Rydberg blockade

Beterov, I. I.; Saffman, M.; Yakshina, E. A.; Zhukov, V. P.; Tretyakov, D. B.; Entin, V. M.; Ryabtsev, I. I.; Mansell, C. W.; MacCormick, C.; Bergamini, S. and Fedoruk, M. P. (2013). Quantum gates in mesoscopic atomic ensembles based on adiabatic passage and Rydberg blockade. Physical Review A, 88(1), article no. 010303(R).

DOI (Digital Object Identifier) Link: https://doi.org/10.1103/PhysRevA.88.010303
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Abstract

We present schemes for geometric phase compensation in an adiabatic passage which can be used for the implementation of quantum logic gates with atomic ensembles consisting of an arbitrary number of strongly interacting atoms. Protocols using double sequences of stimulated Raman adiabatic passage (STIRAP) or adiabatic rapid passage (ARP) pulses are analyzed. Switching the sign of the detuning between two STIRAP sequences, or inverting the phase between two ARP pulses, provides state transfer with well-defined amplitude and phase independent of atom number in the Rydberg blockade regime. Using these pulse sequences we present protocols for universal single-qubit and two-qubit operations in atomic ensembles containing an unknown number of atoms.

Item Type: Journal Item
Copyright Holders: 2013 American Physical Society
ISSN: 1094-1622
Project Funding Details:
Funded Project NameProject IDFunding Body
Not SetNot SetEPSRC (Engineering and Physical Sciences Research Council)
Extra Information: 5 pp.
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)
Related URLs:
Item ID: 38398
Depositing User: Silvia Bergamini
Date Deposited: 11 Sep 2013 11:32
Last Modified: 04 Oct 2016 11:30
URI: http://oro.open.ac.uk/id/eprint/38398
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