Abstract
Extending the idea of bidirectional controlled teleportation, we propose a general framework to investigate the annular controlled teleportation (ACT). Under the control of the supervisor, each party transfers her single-qubit state to nearby one with the help of pre-shared entanglement and local unitary operations as well as classical communications. As the examples, we give two specific ACT protocols by using a seven-qubit cluster state and a nine-qubit entangled state as the quantum channel respectively to prove that this framework is possible.
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