Optimal discrimination of optical coherent states cannot always be realized by interfering with coherent light, photon counting, and feedback

Physical Review A - Atomic, Molecular, and Optical Physics

5 years ago

Optimal discrimination of optical coherent states cannot always be realized by interfering with coherent light, photon counting, and feedback

Kenji Nakahira, Tsuyoshi Sasaki Usuda, Kentaro Kato

A method is developed to analyze the performance of sequential measurements, thus providing a way to benchmark various optical receivers. In particular, it is proved that a Dolinar-like receiver cannot realize a “minimum error quantum measurement” when dealing with ternary coherent states.

Publisher URL: http://link.aps.org/doi/10.1103/PhysRevA.97.022320

DOI: 10.1103/PhysRevA.97.022320

You might also like

Discover & Discuss Important Research

Keeping up-to-date with research can feel impossible, with papers being published faster than you'll ever be able to read them. That's where Researcher comes in: we're simplifying discovery and making important discussions happen. With over 19,000 sources, including peer-reviewed journals, preprints, blogs, universities, podcasts and Live events across 10 research areas, you'll never miss what's important to you. It's like social media, but better. Oh, and we should mention - it's free.

Researcher displays publicly available abstracts and doesn’t host any full article content. If the content is open access, we will direct clicks from the abstracts to the publisher website and display the PDF copy on our platform. Clicks to view the full text will be directed to the publisher website, where only users with subscriptions or access through their institution are able to view the full article.