Continuous dynamical decoupling utilizing time-dependent detuning

TL;DR

This paper introduces a novel continuous dynamical decoupling method that employs time-dependent detuning to enhance noise resilience and simplify experimental setups, with applications in quantum sensing.

Contribution

It proposes a new approach to continuous dynamical decoupling using shaped detuning, reducing experimental complexity and improving robustness against certain noise types.

Findings

Enhanced noise robustness through detuning shaping

Simplified experimental implementation

Potential improvements in quantum sensing accuracy

Abstract

Resilience to noise and to decoherence processes is an important ingredient for the implementation of quantum information processing, and quantum technologies. To this end, techniques such as pulsed and continuous dynamical decoupling have been proposed to reduce noise effects. In this paper, we suggest a new approach to implementing continuous dynamical decoupling techniques, that uses an extra control parameter; namely, the ability to shape the time dependence of the detuning. This approach reduces the complexity of the experimental setup, such that we are only left with noise originating from the frequency of the driving field, which is much more robust than the amplitude (Rabi frequency) noise. As an example, we show that our technique can be utilized for improved sensing.