Answers are grounded in this paper and cite their sources.
We propose a quantum feedback scheme for producing deterministically reproducible spin squeezing. The results of a continuous nondemolition atom number measurement are fed back to control the quantum state of the sample. For large samples and strong cavity coupling, the squeezing parameter minimum scales inversely with atom number, approaching the Heisenberg limit. Furthermore, ceasing the measurement and feedback when this minimum has been reached will leave the sample in the maximally squeezed spin state.
No takes yet. Share an insight, caveat, or question.
Thomsen et al. (2002) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: