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6CCVD Research

Holonomic Quantum Control by Coherent Optical Excitation in Diamond

At a Glance

Section titled ā€œAt a Glanceā€
MetadataDetails
Publication Date2017-10-02
JournalPhysical Review Letters
AuthorsBrian B. Zhou, Paul C. Jerger, V. O. Shkolnikov, F. Joseph Heremans, Guido Burkard
InstitutionsUniversity of Konstanz, University of Chicago
Citations159

Abstract

Section titled ā€œAbstractā€

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.

Tech Support

Section titled ā€œTech Supportā€

Original Source

Section titled ā€œOriginal Sourceā€

References

Section titled ā€œReferencesā€
  1. 1989 - Geometric Phases in Physics [Crossref]

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