Quantum Metrology with Two-Mode Squeezed Vacuum: Parity Detection Beats the Heisenberg Limit (2009)
Anisimov, Petr M., Raterman, Gretchen M., Chiruvelli, Aravind, Plick, William N., Huver, Sean D., Lee, Hwang, ...
We study the sensitivity and resolution of phase measurement in a Mach-Zehnder interferometer with two-mode squeezed vacuum ( photons on average). We show that super-resolution and sub-Heisenberg...