Non-homogeneous Bell-type Inequalities for Two- and Three-qubit States

Date
Authors
Shi, Mingjun
Ren, Changliang
Du, Jiangfeng
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
Description
A systematic approach is presented to construct non-homogeneous two- and three-qubit Bell-type inequalities. When projector-like terms are subtracted from homogeneous two-qubit CHSH polynomial, non-homogeneous inequalities are attained and the maximal quantum mechanical violation asymptotically equals a constant with the subtracted terms becoming sufficiently large. In the case of three-qubit system, it is found that most significant three-qubit inequalities presented in literature can be recovered in our framework. We aslo discuss the behavior of such inequalities in the loophole-free Bell test and obtain corresponding thresholds of detection efficiency.
Keywords
Quantum Physics
Citation
Collections