Philipp Hyllus, Luca Pezzé, Augusto Smerzi. Entanglement and Sensitivity in Precision Measurements with States of a Fluctuating Number of Particles.
Physical Review Letters, American Physical Society, 2010, 105 (12), pp.120501.
⟨10.1103/PhysRevLett.105.120501⟩.
⟨hal-00746823⟩