"Partial" quantum cloning and quantum cloning of the mixed states

TL;DR

This paper introduces a method for partial quantum cloning of pure two-partite states and extends it to mixed qubit states, focusing on copying only a part of the initial state.

Contribution

It presents a novel approach for partial quantum cloning applicable to mixed states, expanding the scope of quantum copying techniques.

Findings

Partial cloning of pure two-partite states demonstrated

Quantum copying machine designed for mixed qubit states

Method enables copying only a part of the initial quantum state

Abstract

We discuss the "partial" quantum cloning of the pure two-partite states, when the "part" of initial state related to the one qubit is copied only. The same approach gives the possibility to design the quantum copying machine for the mixed qubit states.