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Abstract：
We propose a scheme for direct measurement of the Wigner function for a cavity mode. In the scheme the cavity field resonantly interacts with an atomic ensemble. Under certain conditions, the state of the cavity mode is transferred to the atomic system. After a displacement the measurement of the parity of the atomic excitation number directly yields the Wigner function of the initial state of the cavity mode. © 2008 Chinese Physical Society and IOP Publishing Ltd.
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Chinese Physics Letters
ISSN： 0256-307X
Year： 2008
Issue： 9
Volume： 25
Page： 3123-3125
0 . 7 4 3
JCR@2008
3 . 5 0 0
JCR@2023
JCR Journal Grade：3
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ESI Highly Cited Papers on the List： 0 Unfold All
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30 Days PV： 1
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