摘要We provide an experimental scheme which includes the realization of quantum amplitude damping channel and the optimal two-qubit purification. Moreover, we discuss the purification of arbitrary input qubits and arbitrary N qubits. Our scheme only uses linear optical elements and the proposal may be useful in transmission of photons in fibres. This scheme is feasible in the laboratory with the current experimental technology.
Abstract：We provide an experimental scheme which includes the realization of quantum amplitude damping channel and the optimal two-qubit purification. Moreover, we discuss the purification of arbitrary input qubits and arbitrary N qubits. Our scheme only uses linear optical elements and the proposal may be useful in transmission of photons in fibres. This scheme is feasible in the laboratory with the current experimental technology.
LIN Qing;LI Jian;GUO Guang-Can. Linear Optical Realization of Qubit Purification with Quantum Amplitude Damping Channel[J]. 中国物理快报, 2007, 24(7): 1809-1312.
LIN Qing, LI Jian, GUO Guang-Can. Linear Optical Realization of Qubit Purification with Quantum Amplitude Damping Channel. Chin. Phys. Lett., 2007, 24(7): 1809-1312.
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2007, Vol. 24 
