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Complementarity and Young's interference fringes from two atoms

W. M. Itano·J. C. Bergquist·J. J. Bollinger·D. J. Wineland·U. Eichmann·M. G. Raizen
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Abstract

The interference pattern of the resonance fluorescence from a J=1/2 to J=1/2 transition of two identical atoms confined in a three-dimensional harmonic potential is calculated. Thermal motion of the atoms is included. Agreement is obtained with experiments [Eichmann et al., Phys. Rev. Lett. 70, 2359 (1993)]. Contrary to some theoretical predictions, but in agreement with the present calculations, a fringe visibility greater than 50% can be observed with polarization-selective detection. The dependence of the fringe visibility on polarization has a simple interpretation, based on whether or not it is possible in principle to determine which atom emitted the photon.

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W. M. Itano, J. C. Bergquist, J. J. Bollinger, D. J. Wineland, U. Eichmann, M. G. Raizen. 1997-11-19. Complementarity and Young's interference fringes from two atoms. https://doi.org/10.1103/physreva.57.4176

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