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Intensity-intensity correlations as a probe of interferences under conditions of noninterference in the intensity

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http://pubman.mpdl.mpg.de/cone/persons/resource/persons60386

Agarwal,  G. S.
Laser Physics, Max Planck Institute of Quantum Optics, Max Planck Society;
Laser Spectroscopy, Max Planck Institute of Quantum Optics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons60912

von Zanthier,  J.
Laser Physics, Max Planck Institute of Quantum Optics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons60850

Skornia,  C.
Laser Physics, Max Planck Institute of Quantum Optics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons60915

Walther,  H.
Laser Physics, Max Planck Institute of Quantum Optics, Max Planck Society;

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Citation

Agarwal, G. S., von Zanthier, J., Skornia, C., & Walther, H. (2002). Intensity-intensity correlations as a probe of interferences under conditions of noninterference in the intensity. Physical Review A, 65(5): 053826. 053826. Retrieved from http://link.aps.org/abstract/PRA/v65/e053826.


Cite as: http://hdl.handle.net/11858/00-001M-0000-000F-C21F-9
Abstract
The different behavior of first-order interferences and second-order correlations are investigated for the case of two coherently excited atoms. For intensity measurements this problem is in many respects equivalent to Young's double-slit experiment and was investigated in an experiment by Eichmann [Phys. Rev. Lett. 70, 2359 (1993)] and later analyzed in detail by Itano [Phys. Rev. A 57, 4176 (1998)]. Our results show that in cases where the intensity interferences disappear the intensity-intensity correlations can display an interference pattern with a visibility of up to 100%. The contrast depends on the polarization selected for the detection and is independent of the strength of the driving field. The nonclassical nature of the calculated intensity-intensity correlations is also discussed.