Tuesday, February 12, 2013

1302.2460 (Sajjad Zafar et al.)

Scheme of 2-dimensional atom localization for a three-level atom via
quantum coherence
   [PDF]

Sajjad Zafar, Rizwan Ahmed, M. Khalid Khan
We present a scheme for two-dimensional (2D) atom localization in a three-level atomic system. The scheme is based on quantum coherence via classical standing wave fields between the two excited levels. Our results show that conditional position probability is significantly phase dependent of the applied field and frequency detuning of spontaneously emitted photons. We obtain a single localization peak having probability close to unity by manipulating the control parameters. The effect of atomic level coherence on the sub-wavelength localization has also been studied. Our scheme may be helpful in systems involving atom-field interaction.
View original: http://arxiv.org/abs/1302.2460

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