A robust one-step catalytic machine for high fidelity anti-cloning and W-state generation in a multi-qubit system

Alexandra Olaya-Castro, Neil F. Johnson, Luis Quiroga

We propose a physically realizable machine which can either generate multiparticle W-like states, or implement high fidelity $1\to M$ ($M=1,2,...\infty$) anti-cloning of an arbit…