  The signal to noise ratio of quantum sensing protocols scales with the square
root of the coherence time. Thus, increasing this time is a key goal in the
field. Dynamical decoupling has proven to be efficient in prolonging the
coherence times for the benefit of quantum sensing. However, dynamical
decoupling can only push the sensitivity up to a certain limit. In this work we
present a new approach to increasing the coherence time further through error
correction which can improve the efficiency of quantum sensing beyond the
fundamental limits of current state of the art methods.
