Quantum SU(1,1) interferometers: Basic principles and applications

Z. Y. Ou; Xiaoying Li

doi:10.1063/5.0004873

Quantum SU(1,1) interferometers : Basic principles and applications

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

Overview

88 Scopus Citations

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Author(s)

Z. Y. Ou
Xiaoying Li

Detail(s)

Original language	English
Article number	080902
Journal / Publication	APL Photonics
Volume	5
Issue number	8
Online published	10 Aug 2020
Publication status	Published - Aug 2020
Externally published	Yes

Link(s)

DOI	DOI https://doi.org/10.1063/5.0004873 Final Published version
	Check@CityULib
Attachment(s)	Documents 80509637.pdf Final Published version, 2.67 MB, PDF Publisher's Copyright Statement This full text is made available under CC-BY 4.0. https://creativecommons.org/licenses/by/4.0/
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-85094191264&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(45544f27-f15f-4c9c-bff0-4d2796cf9c5e).html

Abstract

A new type of quantum interferometer was recently realized that employs parametric amplifiers (PAs) as the wave splitting and mixing elements. The quantum behavior stems from the PAs, which produce quantum entangled fields for probing the phase change signal in the interferometer. This type of quantum entangled interferometer exhibits some unique properties that are different from traditional beam splitter-based interferometers such as Mach-Zehnder interferometers. Because of these properties, it is superior to the traditional interferometers in many aspects, especially in the phase measurement sensitivity. We will review its unique properties and applications in quantum metrology and sensing, quantum information, and quantum state engineering.