We study quantum cloning machines (QCM) that act on an unknown N-level quantum state and make M copies. We give a formula for the maximum of the fidelity of cloning and exhibit the unitary transformations that realize this optimal fidelity. We also extend the results to treat the case of M copies from N' (M>M') identical N-level quantum systems
The no-cloning theorem is one of the fundamental concepts of quantum information theory. It tells us...
We derive a tight upper bound for the fidelity of a universal N to M qubit cloner, valid for any M \...
We derive a lower bound for the optimal fidelity for deterministic cloning a set of n pure states. I...
In this project, quantum cloning machines are analyzed that take in N quantum systems in the same un...
The cloning of conjugate continuous quantum variables is analyzed based on the concept of Gaussian c...
The impossibility of perfectly copying or cloning an unknown quantum state is one of the basic rule...
An optimal universal cloning transformation is derived that produces M copies of an unknown qubit fr...
We establish the best possible approximation to a perfect quantum cloning machine that produces two ...
We establish the best possible approximation to a perfect quantum cloning machine which produces two...
A quantum cloning machine is introduced that yields M identical optimal clones from N replicas of a ...
The no-cloning theorem is one of the fundamental concepts of quantum information theory. It tells us...
We derive a tight upper bound for the fidelity of a universal N → M qubit cloner, valid for any M ≥ ...
The no-cloning theorem is one of the fundamental concepts of quantum information theory. It tells us...
We pose the question whether the asymptotic equivalence between quantum cloning and quantum state es...
The impossibility of perfectly copying (or cloning) an unknown quantum state is one of the basic rul...
The no-cloning theorem is one of the fundamental concepts of quantum information theory. It tells us...
We derive a tight upper bound for the fidelity of a universal N to M qubit cloner, valid for any M \...
We derive a lower bound for the optimal fidelity for deterministic cloning a set of n pure states. I...
In this project, quantum cloning machines are analyzed that take in N quantum systems in the same un...
The cloning of conjugate continuous quantum variables is analyzed based on the concept of Gaussian c...
The impossibility of perfectly copying or cloning an unknown quantum state is one of the basic rule...
An optimal universal cloning transformation is derived that produces M copies of an unknown qubit fr...
We establish the best possible approximation to a perfect quantum cloning machine that produces two ...
We establish the best possible approximation to a perfect quantum cloning machine which produces two...
A quantum cloning machine is introduced that yields M identical optimal clones from N replicas of a ...
The no-cloning theorem is one of the fundamental concepts of quantum information theory. It tells us...
We derive a tight upper bound for the fidelity of a universal N → M qubit cloner, valid for any M ≥ ...
The no-cloning theorem is one of the fundamental concepts of quantum information theory. It tells us...
We pose the question whether the asymptotic equivalence between quantum cloning and quantum state es...
The impossibility of perfectly copying (or cloning) an unknown quantum state is one of the basic rul...
The no-cloning theorem is one of the fundamental concepts of quantum information theory. It tells us...
We derive a tight upper bound for the fidelity of a universal N to M qubit cloner, valid for any M \...
We derive a lower bound for the optimal fidelity for deterministic cloning a set of n pure states. I...
DOI
Add to ORKG