Holonomic Quantum Control by Coherent Optical Excitation in Diamond

Brian B. Zhou, Paul C. Jerger, V. O. Shkolnikov, F. Joseph Heremans, Guido Burkard, and David D. Awschalom
Phys. Rev. Lett. 119, 140503 – Published 2 October 2017
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Abstract

Although geometric phases in quantum evolution are historically overlooked, their active control now stimulates strategies for constructing robust quantum technologies. Here, we demonstrate arbitrary single-qubit holonomic gates from a single cycle of nonadiabatic evolution, eliminating the need to concatenate two separate cycles. Our method varies the amplitude, phase, and detuning of a two-tone optical field to control the non-Abelian geometric phase acquired by a nitrogen-vacancy center in diamond over a coherent excitation cycle. We demonstrate the enhanced robustness of detuned gates to excited-state decoherence and provide insights for optimizing fast holonomic control in dissipative quantum systems.

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  • Received 1 May 2017

DOI:https://doi.org/10.1103/PhysRevLett.119.140503

© 2017 American Physical Society

Physics Subject Headings (PhySH)

General PhysicsCondensed Matter, Materials & Applied PhysicsQuantum Information, Science & Technology

Authors & Affiliations

Brian B. Zhou1, Paul C. Jerger1, V. O. Shkolnikov2, F. Joseph Heremans1,3, Guido Burkard2, and David D. Awschalom1,3,*

  • 1Institute for Molecular Engineering, University of Chicago, Chicago, Illinois 60637, USA
  • 2Department of Physics, University of Konstanz, D-78457 Konstanz, Germany
  • 3Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439, USA

  • *awsch@uchicago.edu

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Issue

Vol. 119, Iss. 14 — 6 October 2017

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