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quant-ph2010
Ultrasensitive Atomic clock with single-mode number-squeezing
L. Pezze, A. Smerzi
We show that the sensitivity of an atomic clock can be enhanced below the shot-noise level by initially squeezing, and then measuring in output, the population of a single atomic l…
quant-ph2010★ 129 cited
Entanglement and sensitivity in precision measurements with states of a fluctuating number of particles
P. Hyllus, L. Pezzé, A. Smerzi
The concepts of separability, entanglement, spin-squeezing and Heisenberg limit are central in the theory of quantum enhanced metrology. In the current literature, these are well e…