Quantum computation and quantum information
Quantum computation and quantum information
IEEE Transactions on Information Theory
Quantum Information Processing
Quantum private queries: security analysis
IEEE Transactions on Information Theory
No-cloning theorem for a single POVM
Quantum Information & Computation
Some properties of partial fidelities
Quantum Information & Computation
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A generalization of quantum broadcasting protocol is presented. Here the goal is to copy an unknown input state into two subsystems which partially overlap. We show that the possibility of implementing these protocols strongly depends upon the overlap among the subsystems. Conditions for approximated shared broadcasting are analyzed.