Deletion, Bell's Inequality, Teleportation

TL;DR

This paper investigates the entangled states produced by a quantum deletion machine to assess their potential as teleportation channels, finding they do not violate Bell's inequality but can still achieve high teleportation fidelity.

Contribution

It demonstrates that entangled states from the Pati-Braunstein deletion machine can serve as effective teleportation channels despite not violating Bell's inequality.

Findings

States do not violate Bell's inequality for all input parameters.

Teleportation fidelity exceeds the classical limit of 2/3.

Potential for quantum teleportation using deletion machine outputs.

Abstract

In this letter we analyze the efficacy of the entangled output of Pati-Braunstein deletion machine [3] as a teleportation channel. We analyze the possibility of it violating the Bell's inequality. Interestingly we find that for all values of the input parameter$\alpha$ the state does not violate the Bell's inequality but when used as a teleportation channel can give a fidelity higher than the classical optimum (i.e 2/3).