Testing non-local realism with entangled coherent states
M. Paternostro, H. Jeong
TL;DR
This paper explores how entangled coherent states can violate non-local realism through nonlinear operations and homodyne measurements, analyzing Leggett-type inequalities and detection inefficiencies.
Contribution
It introduces a method to test non-local realism using ECS with optimized inequalities and evaluates the impact of detection inefficiencies.
Findings
ECS can violate Leggett-type inequalities under certain conditions
Detection inefficiency effects are thoroughly assessed
Optimized incompatibility inequalities enhance testing robustness
Abstract
We investigate the violation of non-local realism using entangled coherent states (ECS) under nonlinear operations and homodyne measurements. We address recently proposed Leggett-type inequalities, including a class of optimized incompatibility ones and thoroughly assess the effects of detection inefficiency.
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