Independent nonclassical tests for states and measurements in the same experiment

TL;DR

This paper introduces a method to simultaneously and independently test the nonclassicality of quantum states and measurements within a single experiment, accounting for measurement imperfections.

Contribution

It presents a novel approach to independently verify nonclassicality of states and measurements using classical bounds in a single experimental setup.

Findings

Single experiment can test both states and measurements independently.

Method accounts for measurement imperfections with two different bounds.

Provides a practical framework for nonclassicality verification.

Abstract

We show that one single experiment can test simultaneously and independently both the nonclassicality of states and measurements by the violation or fulfillment of classical bounds on the statistics. Nonideal measurements affected by imperfections can be characterized by two bounds depending on whether we test the ideal measurement or the real one.