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Berlin 2014 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 26: Quantum effects: Miscellaneous

Q 26.2: Talk

Tuesday, March 18, 2014, 14:15–14:30, DO26 208

Engineering atomic mirror by utilizing the collective effects of an interacting multi-atom system — •Qurrat-ul-ain Gulfam1 and Zbigniew Ficek21Department of Physics, Jazan University, Saudi Arabia — 2The National Centre for Mathematics and Physics, King Abdulaziz City for Science and Technology, Riyadh, Saudi Arabia

Utilizing cold atoms as highly reflecting mirrors has gained much attention recently [1]. Atoms coupled to cavity fields in certain parameter regimes behave as perfect mirrors. In [2], cold atoms coupled to a waveguide are capable of organizing themselves along the waveguide when the trapping field is applied only from the transverse direction and the atomic motion along the axial direction is not restricted. This way the response of the waveguide field mode on atomic dynamics is taken into consideration. The atoms in the proposed setup, nevertheless, are uncorrelated. Interesting collective effects occur when the correlations between/among the atoms become non-negligible. Whether the collective dynamics of the interacting multi-atom system enable it to be used as a macroscopic atomic mirror remains to be discovered. We propose to use interacting atoms instead of independent atoms and observe how the inter-atomic interactions affect the properties of the atom-mirror.

[1] S. A. R. Horsley, et al, Phys. Rev. Lett. 110, 223602 (2013).

[2] D. E. Chang, et al, Phys. Rev. Lett. 110, 113606 (2013).

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