Abstract
Pulse-level protocols are commonly used in quantum information and sensing experiments. However, finite pulse width, inevitable in many cases due to experimental conditions, can affect the overall performance of the quantum measurement. Here, we study the effect of finite pulse width on quantum sensing experiments based on the solid-state spin qubits: nitrogen-vacancy centers in diamond. We perform magnetic sensing experiments of DC and AC fields using canonical sensing protocols: Ramsey interferometry, Hahn echo, and XY8 dynamical decoupling. By varying the width of π/2 and π pulse used in the protocols, we estimate the amount of phase accumulation during the pulses and correct their effects by compensating the qubit evolution time for time offsets due to the phase accumulation. In this way, we are able to recover optimal conditions for maximum sensitivity.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
