Editing Phase Co-variant Cloning (section)


This protocol achieves the functionality of [[Quantum Cloning]] Machine (QCM). Phase-covariant cloning describes is a special [[State Dependent N-M Cloning|state-dependent cloning]] which is able to make copies of a specific class of input states which satisfy a certain condition. For qubits, a phase-covariant cloner is a machine which is able to clone equatorial states ( states whose vector lies in the equator <math>(x-y)</math> plane of the [[Bloch sphere]]).  There are different phase-covariant cloning protocols for qubits. It can be done with or without an extra [[ancilla]] state and also asymmetric or symmetric. Generally, the state-dependent cloning protocol is asymmetric, meaning that copies have different [[fidelity]] (different qualities compared to the original state) and the symmetric protocol is only a special case of the asymmetric protocol.



'''Tags:''' [[Quantum Cloning#Protocols|Non-Universal Cloning]], [[State Dependent N-M Cloning]], [[Category: Building Blocks]] [[:Category: Building Blocks|Building Blocks]], [[Quantum Cloning]], Non-Universal Cloning, copying quantum states, [[:Category: Quantum Functionality|Quantum Functionality]][[Category: Quantum Functionality]], [[:Category:Specific Task|Specific Task]][[Category:Specific Task]], [[Optimal Universal N-M Cloning|Optimal or Symmetric Cloning]], [[Probabilistic Cloning]]