Teleportation protocol with non-ideal conditional local operations

TL;DR

This paper analyzes quantum teleportation when Bob's local operations are imperfect and the shared channel is non-maximally entangled, showing how to optimize fidelity by choosing the measurement basis.

Contribution

It introduces a method to maximize teleportation fidelity considering non-ideal local operations and non-maximal entanglement.

Findings

Optimal measurement basis improves teleportation fidelity.

Non-maximal entanglement reduces average fidelity.

Proper basis choice mitigates imperfections in operations.

Abstract

In the standard protocol for quantum teleportation, one assumes that Bob is able to perform ideal operations on his qubit. Here, we analyze the case in which some of these operations are more reliable than others. Moreover, we consider the channel shared by Alice and Bob as non-maximally entangled. In this context, the average fidelity of teleportation can be maximized by properly choosing the basis in which Alice performs her two-qubit measurement.