Smooth Optimal Quantum Control for Robust Solid-State Spin Magnetometry
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2015-11-06 |
| Journal | Physical Review Letters |
| Authors | Tobias Nƶbauer, Andreas Angerer, Bjƶrn Bartels, Michael Trupke, Stefan Rotter |
| Institutions | Imperial College London, University of Freiburg |
| Citations | 79 |
Abstract
Section titled āAbstractāWe experimentally demonstrate a simple yet versatile optimal quantum control technique that achieves tailored robustness against qubit inhomogeneities and control errors while requiring minimal bandwidth. We apply the technique to nitrogen-vacancy (NV) centers in diamond and verify its performance using quantum process tomography. In a wide-field NV center magnetometry scenario, we achieve a homogeneous sensitivity across a 33% drop in control amplitude, and we improve the sensitivity by up to 2 orders of magnitude for a normalized detuning as large as 40%, achieving a value of 20 nT Hz(-1/2) Ī¼m(3/2) in sensitivity times square root volume.
Tech Support
Section titled āTech SupportāOriginal Source
Section titled āOriginal SourceāReferences
Section titled āReferencesā- 1995 - Global Methods in Optimal Control Theory