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Journal Article

Measurement of the separation between atoms beyond diffraction limit


Evers,  Jörg
Division Prof. Dr. Christoph H. Keitel, MPI for Nuclear Physics, Max Planck Society;

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Chang, J. T., Evers, J., Scully, M. O., & Zubairy, M. S. (2006). Measurement of the separation between atoms beyond diffraction limit. Physical Review A, 73(3): 031803, pp. 1-4. doi:10.1103/PhysRevA.73.031803.

Cite as: http://hdl.handle.net/11858/00-001M-0000-0011-807B-C
Precision measurement of small separations between two atoms or molecules has been of interest since the early days of science. Here, we discuss a scheme which yields spatial information on a system of two identical atoms placed in a standing wave laser field. The information is extracted from the collective resonance fluorescence spectrum, relying entirely on far-field imaging techniques. Both the interatomic separation and the positions of the two particles can be measured with fractional-wavelength precision over a wide range of distances from about λ/550 to λ/2.