High-Resolution Quantum Sensing with Shaped Control Pulses
At a Glance
Section titled âAt a Glanceâ| Metadata | Details |
|---|---|
| Publication Date | 2017-12-28 |
| Journal | Physical Review Letters |
| Authors | Jonathan Zopes, Kento Sasaki, K. S. Cujia, J. M. Boss, Kai Chang |
| Institutions | Keio University, ETH Zurich |
| Citations | 35 |
Abstract
Section titled âAbstractâWe investigate the application of amplitude-shaped control pulses for enhancing the time and frequency resolution of multipulse quantum sensing sequences. Using the electronic spin of a single nitrogen-vacancy center in diamond and up to 10 000 coherent microwave pulses with a cosine square envelope, we demonstrate 0.6-ps timing resolution for the interpulse delay. This represents a refinement by over 3 orders of magnitude compared to the 2-ns hardware sampling. We apply the method for the detection of external ac magnetic fields and nuclear magnetic resonance signals of ^{13}C spins with high spectral resolution. Our method is simple to implement and especially useful for quantum applications that require fast phase gates, many control pulses, and high fidelity.