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quant-ph2012★ 8 cited
Extremal asymmetric universal cloning machines
Mingming Jiang, Sixia Yu
The trade-offs among various output fidelities of asymmetric universal cloning machines are investigated. First we find out all the attainable optimal output fidelities for the 1 t…
quant-ph2008★ 1 cited
Quantum Error-Correcting Codes with Preexisting Protected Qubits
Ying Dong, Xiuhao Deng, Mingming Jiang +2
We provide a systematic way of constructing entanglement-assisted quantum error-correcting codes via graph states in the scenario of preexisting perfectly protected qubits. It turn…