Fast phase gates with trapped ions

M. Palmero, S. Martínez-Garaot, D. Leibfried, D. J. Wineland, and J. G. Muga
Phys. Rev. A 95, 022328 – Published 21 February 2017

Abstract

We implement faster-than-adiabatic two-qubit phase gates using smooth state-dependent forces. The forces are designed to leave no final motional excitation, independently of the initial motional state in the harmonic small-oscillations limit. They are simple, explicit functions of time and the desired logical phase of the gate, and are based on quadratic invariants of motion and Lewis-Riesenfeld phases of the normal modes.

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  • Received 7 September 2016

DOI:https://doi.org/10.1103/PhysRevA.95.022328

©2017 American Physical Society

Physics Subject Headings (PhySH)

Atomic, Molecular & OpticalQuantum Information, Science & Technology

Authors & Affiliations

M. Palmero1,*, S. Martínez-Garaot1, D. Leibfried2, D. J. Wineland2, and J. G. Muga1

  • 1Departamento de Química Física, UPV/EHU, Apartado Postal 644, 48080 Bilbao, Spain
  • 2National Institute of Standards and Technology, 325 Broadway, Boulder, Colorado 80305, USA

  • *mikel.palmero@ehu.eus

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Issue

Vol. 95, Iss. 2 — February 2017

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