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Abstract：
A scheme is presented for generating a four-photon coherent state via the degenerate Raman interaction. The scheme does not need classical fields to manipulate the atoms. Its another advantage is that the atomic spontaneous emission can be neglected. Therefore, the coherence of the system may be better maintained. The scheme can be generalized to generate superposition of 2(n) coherent states and superposition of 2(n) two-mode coherent states. The coherent states in each mode are on a circle symmetrically.
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COMMUNICATIONS IN THEORETICAL PHYSICS
ISSN： 0253-6102
CN： 11-2592/O3
Year： 2006
Issue： 1
Volume： 45
Page： 154-156
0 . 7 2 6
JCR@2006
2 . 4 0 0
JCR@2023
ESI Discipline： PHYSICS;
JCR Journal Grade：3
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SCOPUS Cited Count：
ESI Highly Cited Papers on the List： 0 Unfold All
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Chinese Cited Count：
30 Days PV： 0
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