Effect of Dimple Potential on Ultraslow Light in a Bose-Einstein Condensate |

D. Tarhan
^{a} and H. Uncu^{b}^{a}Department of Physics, Harran University, Osmanbey Yerleşkesi, Şanlıurfa, 63300 Turkey
^{b}Department of Physics, Adnan Menderes University, Aydın, Turkey |

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We investigate the propagation of ultraslow optical pulse in atomic Bose-Einstein condensate in a harmonic trap decorated with a dimple potential. The role of dimple potential on the group velocity and time delay is studied. Since we consider the interatomic scattering interactions, nonlinear Schrödinger equation or the Gross-Pitaevskii equation is used in order to get the density profile of the atomic system. We find large group delays of order 1 ms in an atomic Bose-Einstein condensate in a harmonic trap with a deep dimple potential. |

DOI: 10.12693/APhysPolA.121.141 PACS numbers: 42.50.Gy, 67.85.Hj |