Quantum Metrology with Maximally Entangled States and Parity Measurements
Christopher C. Gerry, Adil Benmoussa, Richard A. Campos · Frontiers in Optics · 2006
We discuss our recent work on Heisenberg-limited interferometric measurements of phase shifts using maximally entangled states of N photons and with twin Fock states injected into a Mach-Zehnder interferometer, coupled with photonic parity measurements.