Quantum control-enhanced sensing and spectroscopy with NV qubits in diamond
Name
110910L.pdf
Description
Published version
Size
3.38 MB
Format
Adobe PDF
Checksum (MD5)
60fa309539909bd93e96f3a2362f8d7e
Author(s)
Cappellaro, Paola
Date Issued
September 3, 2019
Journal
Proceedings of the Society of Photo-optical Instrumentation Engineers
Publisher
SPIE
Citation
Cappellaro, Paola. 2019. "Quantum control-enhanced sensing and spectroscopy with NV qubits in diamond." Proceedings of the Society of Photo-optical Instrumentation Engineers, 11091.
Version
Final published version
Abstract
© COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only. Quantum sensors take advantage of the inherent sensitivity of quantum systems to external environment perturbations to precisely measure target signals. The same interaction with the environment, however, limits the device sensitivity by reducing the coherence of the quantum states. Quantum control can play a crucial role in improving the sensor performance. We explore quantum control tools to improve the performance of a NitrogenVacancy (NV) center as a single-qubit sensor of ultra-weak magnetic fields in noisy environments. We present a method to obtain a precise spectroscopic characterization of the NV environment, instrumental to design robust sensing strategies with improved noise protection. Then, we exploit optimal quantum control based on a set of numerical methods to optimize the temporal dependence of the sensor driving field adapted to quantum sensing purposes, and prove its advantage to achieve best compromises between signal acquisition and noise cancellation.
MIT Department
Massachusetts Institute of Technology. Department of Nuclear Science and Engineering
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1117/12.2531734
