• Open Access

Berry-phase gates for fast and robust control of atomic clock states

Yunheung Song, Jongseok Lim, and Jaewook Ahn
Phys. Rev. Research 2, 023045 – Published 16 April 2020

Abstract

We propose and experimentally demonstrate a fast Berry-phase gate, which is implemented by picosecond-timescale optical pulses to make the qubit system of atomic clock states adiabatically evolve on a closed loop. The characteristic features of the proposed gate are gate speed and robustness against control fluctuations, which can potentially resolve the decoherence and reliability issues in quantum information processing, at the same time. The experiment is conducted with two linearly polarized, chirped optical pulses, interacting with five single rubidium atoms simultaneously in an array of optical tweezer dipole traps, to demonstrate the proposed picosecond-timescale clock-state gates. The robustness of the qubit rotation angle δΘ/δA=1.5% is achieved with respect to the laser intensity (of pulse area A) fluctuation.

  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Received 23 July 2019
  • Revised 15 January 2020
  • Accepted 19 March 2020

DOI:https://doi.org/10.1103/PhysRevResearch.2.023045

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

Published by the American Physical Society

Physics Subject Headings (PhySH)

Atomic, Molecular & OpticalQuantum Information, Science & Technology

Authors & Affiliations

Yunheung Song1, Jongseok Lim2, and Jaewook Ahn1,*

  • 1Department of Physics, KAIST, Daejeon 34141, Korea
  • 2Centre for Cold Matter, Blackett Laboratory, Imperial College London, Prince Consort Road, London SW7 2AZ, United Kingdom

  • *jwahn@kaist.ac.kr

Article Text

Click to Expand

References

Click to Expand
Issue

Vol. 2, Iss. 2 — April - June 2020

Subject Areas
Reuse & Permissions
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review Research

Reuse & Permissions

It is not necessary to obtain permission to reuse this article or its components as it is available under the terms of the Creative Commons Attribution 4.0 International license. This license permits unrestricted use, distribution, and reproduction in any medium, provided attribution to the author(s) and the published article's title, journal citation, and DOI are maintained. Please note that some figures may have been included with permission from other third parties. It is your responsibility to obtain the proper permission from the rights holder directly for these figures.

×

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×