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quant-ph2026
Squeezing-Enhanced Rotational Doppler Metrology
Javier Navarro, Mateo Casariego, Gabriel Molina-Terriza +2
A rotating surface can induce a frequency shift in incident light by changing its angular momentum, a phenomenon known as the rotational Doppler effect. This effect provides a mean…
quant-ph2025★ 1 cited
On super additivity of Fisher information in fully Gaussian metrology
Javier Navarro, Simon Morelli, Mikel Sanz +1
Famously, the quantum Fisher information -- the maximum Fisher information over all physical measurements -- is additive for independent copies of a system and the optimal measurem…