Efficient and robust signal sensing by sequences of adiabatic chirped pulses

Genko T. Genov, Yachel Ben-Shalom, Fedor Jelezko, Alex Retzker, Nir Bar-Gill

Research output: Contribution to journalArticlepeer-review

Abstract

We propose a scheme for sensing of an oscillating field in systems with large inhomogeneous broadening and driving field variation by applying sequences of phased, adiabatic, chirped pulses. These act as a double filter for dynamical decoupling, where the adiabatic changes of the mixing angle during the pulses rectify the signal and partially remove frequency noise. The sudden changes between the pulses act as instantaneous π pulses in the adiabatic basis for additional noise suppression. We also use the pulses' phases to correct for other errors, e.g., due to nonadiabatic couplings. Our technique improves significantly the coherence time in comparison to standard XY8 dynamical decoupling in realistic simulations in NV centers with large inhomogeneous broadening. Beyond the theoretical proposal, we also present proof-of-principle experimental results for quantum sensing of an oscillating field in NV centers in diamond, demonstrating superior performance compared to the standard technique.

Original languageAmerican English
Article number033216
JournalPHYSICAL REVIEW RESEARCH
Volume2
Issue number3
DOIs
StatePublished - Aug 2020

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy

Fingerprint

Dive into the research topics of 'Efficient and robust signal sensing by sequences of adiabatic chirped pulses'. Together they form a unique fingerprint.

Cite this