Remote two-qubit state creation and its robustness

TL;DR

This paper investigates remote two-qubit state creation using boundary-controlled chains, focusing on Werner states and analyzing robustness against chain imperfections.

Contribution

It introduces a method for remote two-qubit state creation with optimized boundary control and examines its robustness to imperfections.

Findings

Successful creation of Werner states remotely

Robustness of state creation against chain imperfections

Optimization of boundary coupling constants

Abstract

We consider the problem of remote two-qubit state creation using the two-qubit excitation pure initial state of the sender. The communication line is based on the optimized boundary controlled chain with two pairs of properly adjusted coupling constants. The creation of the two-qubit Werner state is considered as an example. We also study the effects of imperfections of the chain on the state-creation.