Quantifying entanglement of two-qubit Werner states  

作　　者：Artur Czerwinski 

机构地区：[1]Institute of Physics,Faculty of Physics,Astronomy and Informatics,Nicolaus Copernicus University,Grudziadzka 5,87-100 Torun,Poland

出　　处：《Communications in Theoretical Physics》2021年第8期75-81,共7页理论物理通讯（英文版）

基　　金：the Foundation for Polish Science(FNP)(project First Team cofinanced by the European Union under the European Regional Development Fund)。

摘　　要：In this article,we introduce a framework for entanglement quantification of photon pairs represented by two-qubit Werner states.The measurement scheme is based on the symmetric informationally complete POVM.To make the framework realistic,we impose the Poisson noise on the measured two-photon coincidences.For various settings,numerical simulations were performed to evaluate the efficiency of the framework.

关 键 词：Werner states quantum state tomography entanglement characterization CONCURRENCE 

分 类 号：O431.2[机械工程—光学工程]