# General sequential quantum cloning

## TL;DR

This paper demonstrates the feasibility of implementing universal quantum cloning machines in a sequential manner for both qubits and higher-dimensional states, enabling practical quantum state replication across various physical platforms.

## Contribution

It introduces a general framework for sequentially implementing N to M universal quantum cloning machines for qubits and d-level systems, expanding the scope of quantum cloning techniques.

## Key findings

- Sequential N to M UQCM is achievable for qubits.
- Extension to d-level quantum states is demonstrated.
- Provides a practical scheme for physical implementation.

## Abstract

Some multipartite quantum states can be generated in a sequential manner which may be implemented by various physical setups like microwave and optical cavity QED, trapped ions, and quantum dots etc. We analyze the general N to M qubits Universal Quantum Cloning Machine (UQCM) within a sequential generation scheme. We show that the N to M sequential UQCM is available. The case of d-level quantum states sequential cloning is also presented.