Chinese Journal of Quantum Electronics, Volume. 27, Issue 2, 180(2010)
Minimal measurement complexity for quantum information splitting of two-qubit state
A quantum information splitting scheme of two-qubit state is proposed by using two asymmetric W states as quantum channel. It’s showed that if the two-qubit state is known to the sender (Alice), then she can split quantum information and distribute it to the receivers (Bob and Charlie) by performing a two-qubit projective measurement. Bob and Charlie first perform a collective unitary operation on their qubits, and then Charlie can recover the initial quantum state by implementing two single-qubit unitary operations. So the scheme reduces greatly the measurement complexity. The success probability and classical communication cost are calculated within the scheme.
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PAN Gui-xia. Minimal measurement complexity for quantum information splitting of two-qubit state[J]. Chinese Journal of Quantum Electronics, 2010, 27(2): 180
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Received: Jun. 16, 2009
Accepted: --
Published Online: May. 31, 2010
The Author Email: Gui-xia PAN (gxpan@aust.edu.cn)
CSTR:32186.14.