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arXiv · 0910.4216

Single atom-scale diamond defect allows large Aharonov-Casher phase

D. Maclaurin·A. D. Greentree·J. H. Cole·L. C. L. Hollenberg·A. M. Martin
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Abstract

We propose an experiment that would produce and measure a large Aharonov-Casher (A-C) phase in a solid-state system under macroscopic motion. A diamond crystal is mounted on a spinning disk in the presence of a uniform electric field. Internal magnetic states of a single NV defect, replacing interferometer trajectories, are coherently controlled by microwave pulses. The A-C phase shift is manifested as a relative phase, of up to 17 radians, between components of a superposition of magnetic substates, which is two orders of magnitude larger than that measured in any other atom-scale quantum system.

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D. Maclaurin, A. D. Greentree, J. H. Cole, L. C. L. Hollenberg, A. M. Martin. 2009-10-22. Single atom-scale diamond defect allows large Aharonov-Casher phase. https://doi.org/10.1103/physreva.80.040104

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