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Three-dimensional atom localization via spontaneous emission in a four-level atom |
Fei Song, Jin-Yu Chen, Zhi-Ping Wang( ), Ben-Li Yu |
| Key Laboratory of Opto-Electronic Information Acquisition and Manipulation of Ministry of Education, Anhui University, Hefei 230601, China |
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Abstract We investigate high-precision three-dimensional (3D) atom localization in a coherently-driven, fourlevel atomic system via spontaneous emission. Space-dependent atom-field interactions allow atomic position information to be obtained by measuring spontaneous emission. By properly varying system parameters, atoms within a certain range can be localized with nearly a probability of 100% and a maximal resolution of ~0.04λ. This scheme may be useful for the high-precision measurement of the center-of-mass wave functions of moving atoms and in atom nanolithography.
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| Keywords
atom localization
spontaneous emission
dressed-state picture
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Corresponding Author(s):
Zhi-Ping Wang
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Issue Date: 06 August 2018
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