We demonstrate the utility of Wigner-function (WF) method in studying the quantum phase estimation. This phase estimation protocol for optical interferometry uses local amplified 1001 state as a probe state. Here, the probe state is obtained by local squeezing each mode of a single-photon-path-entangled state (1001 state). We derive analytically the WFs in describing the connection between input and output fields. In addition, the phase estimation is examined by using parity detection, and the results indicate that our strategy is super-resolving and supersensitive.
Quantum Information Processing – Springer Journals
Published: Oct 18, 2014
It’s your single place to instantly
discover and read the research
that matters to you.
Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.
All for just $49/month
Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly
Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.
All the latest content is available, no embargo periods.
“Whoa! It’s like Spotify but for academic articles.”@Phil_Robichaud