Quantum enhanced measurements by exploiting photon number entanglement
Ivano Ruo Berchera, Ivo Pietro Degiovanni, Alice Meda, E. D. Lopaeva, Stefano Olivares, G. Brida, Marco Genovese · Research in Optical Sciences · 2014
Entanglement and quantum correlation in photon number can be successfully applied to various quantum enhanced measurement schemes, demonstrating amazing robustness against noise and losses and unprecedented accuracy level. We describe our achievements in this field.