Parity Detection for Heisenberg-limited Metrology with Coherent and Squeezed Vacuum Light
Kaushik Parasuram Seshadreesan, Petr M. Anisimov, Hwang Lee, Jonathan P. Dowling · 2011
The interference between coherent and squeezed vacuum light can produce path entangled states with very high fidelities. We show that Heisenberg-limited phase estimation with the above interferometric scheme can be achieved using parity detection.