  Diamond quantum technologies based on color centers have rapidly emerged in
the most recent years. The nitrogen-vacancy (NV) color center has attracted a
particular interest, thanks to its outstanding spin properties and optical
addressability. The NV center has been used to realize innovative multimode
quantum-enhanced sensors that offer an unprecedented combination of high
sensitivity and spatial resolution at room temperature. The technological
progress and the widening of potential sensing applications have induced an
increasing demand for performance advances of NV quantum sensors. Quantum
control plays a key role in responding to this demand. This short review
affords an overview on recent advances in quantum control-assisted quantum
sensing and spectroscopy of magnetic fields.
