Spin-squeezed states for metrology

Spin-squeezing is a well-established quantum technology, where well-designed correlations in an ensemble of two-level systems reduce the statistical uncertainty of spectroscopic experiments. This paper reviews some important advances in the field, with emphasis on the author's contributions concerning, in particular, the fundamental limits imposed by decoherence. Building on the material presented in the first part, new ideas and some promising developments are outlined in the last section. Published under an exclusive license by AIP Publishing.

Automated summary

This paper reviews the application of spin-squeezing technology in spectroscopic experiments, with a focus on the author's contributions in mitigating the limits imposed by decoherence, and outlines new ideas and promising developments.