Nonlocal photon number states for quantum metrology
Markus Aspelmeyer, Philip John Walther, Thomas D. Jennewein, Anton Zeilinger · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2004
Quantum metrology utilizes nonclassical states (of light) to outperform the accuracy limits of its classical counterpart. We demonstrate the relevance of photon number Fock states and polarization entanglement for the experimental realization of interferometric quantum metrology applications.