Quantum Fisher information calculations for nonlinear MZI with Gaussian, squeezed-number, and cat states indicate that shot-noise limits do not apply, with squeezed vacuum optimal.
Title resolution pending
2 Pith papers cite this work. Polarity classification is still indexing.
2
Pith papers citing it
fields
quant-ph 2years
2019 2verdicts
UNVERDICTED 2representative citing papers
Protocol using coherent states and balanced homodyne detection achieves sub-Heisenberg scaling N^{-3/2} for nonlinear phase estimation and is claimed to be nearly optimal and robust to photon loss.
citing papers explorer
-
Conclusive nonlinear phase sensitivity limit for a Mach-Zehnder interferometer with single-mode non-vacuum inputs
Quantum Fisher information calculations for nonlinear MZI with Gaussian, squeezed-number, and cat states indicate that shot-noise limits do not apply, with squeezed vacuum optimal.
-
A nearly optimal and robust protocol for nonlinear phase estimation using coherent states
Protocol using coherent states and balanced homodyne detection achieves sub-Heisenberg scaling N^{-3/2} for nonlinear phase estimation and is claimed to be nearly optimal and robust to photon loss.