J4 ›› 2010, Vol. 27 ›› Issue (2): 180-186.
• Quantum Optics • Previous Articles Next Articles
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Abstract: We propose a quantum information splitting scheme of two-qubit state by using two asymmetric W states as quantum channels. We show 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 can collaborate and recover the quantum information by first performing a collective unitary operation on their qubits, and then respectively implementing two single-qubit unitary operations. So our scheme greatly reduces the measurement complexity.
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URL: http://lk.hfcas.ac.cn/EN/
http://lk.hfcas.ac.cn/EN/Y2010/V27/I2/180