Single-particle tunneling in strongly driven double-well potentials |
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Authors: | Kierig E Schnorrberger U Schietinger A Tomkovic J Oberthaler M K |
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Institution: | Kirchhoff-Institut für Physik, Universit?t Heidelberg, Heidelberg, Germany. cdt@matterwave.de |
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Abstract: | We report on the first direct observation of coherent control of single-particle tunneling in a strongly driven double-well potential. In our setup atoms propagate in a periodic arrangement of double wells allowing the full control of the driving parameters such as frequency, amplitude, and even the space-time symmetry. Our experimental findings are in quantitative agreement with the predictions of the corresponding Floquet theory and are also compared to the predictions of a simple two mode model. Our experiments reveal directly the critical dependence of coherent destruction of tunneling on the generalized parity symmetry. |
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