摘要
We propose an optical scheme to generate cluster states of atomic qubits, with each trapped in separate optical cavity, via atom-cavity-laser interaction. The quantum information of each qubit is encoded on the degenerate ground states of the atom, hence the entanglement between them is relatively stable against spontaneous emission. A single-photon source and two classical fields are employed in the present scheme. By controlling the sequence and time of atom-cavity-laser interaction, we show that the atomic cluster states can be produced deterministically.
We propose an optical scheme to generate cluster states of atomic qubits, with each trapped in separate optical cavity, via atom-cavity-laser interaction. The quantum information of each qubit is encoded on the degenerate ground states of the atom, hence the entanglement between them is relatively stable against spontaneous emission. A single-photon source and two classical fields are employed in the present scheme. By controlling the sequence and time of atom-cavity-laser interaction, we show that the atomic cluster states can be produced deterministically.
基金
Supported by the National Basic Research Program under Grant No 2007CB925204, the National Natural Science Foundation of China under Grant Nos 10947135 and 10775048, the Opening Project of Key Laboratory of Low Dimensional Quantum Structures and Quantum Control （Hunan Normal University）, the Ministry of Education under Grant No QSQC0903, the Scientific Research Fund of Hunan Provincial Education Department under Grant No 09C062, the Construct Prograzn of the Key Discipline in Hunan Province and the Construct Program of the Key Discipline in Changsha University of Science and Technology.
