@article{Kim,
author = {Kim, MS and Antesberger, G and Bodendorf, CT and Walther, H},
journal = {PHYSICAL REVIEW A},
pages = {(R65--R68)--(R65--R68)},
title = {Scheme for direct observation of the Wigner characteristic function in cavity QED},
volume = {58},
}

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TY  - JOUR
AB  - We suggest a quantum state reconstruction scheme. Our proposal is applicable to the field inside a microwave cavity as well as to the harmonic motion of a trapped atom. It will be shown that the inversion of two-level atoms after a resonant interaction with a coherently displaced quantum state is directly related to the Wigner characteristic function of the initial state. This method neither requires the preparation of atoms in a quantum superposition of the upper and lower energy levels nor heavy numerical processing of the measured data. We demonstrate the reconstruction scheme for the example of a Schrodinger-cat superposition state.
AU  - Kim,MS
AU  - Antesberger,G
AU  - Bodendorf,CT
AU  - Walther,H
EP  - 68
SN  - 1050-2947
SP  - 65
TI  - Scheme for direct observation of the Wigner characteristic function in cavity QED
T2  - PHYSICAL REVIEW A
VL  - 58
ER  - 

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