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arXiv · 1010.0037

Photon-photon gates in Bose-Einstein condensates

Arnaud Rispe·Bing He·Christoph Simon
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Abstract

It has recently been shown that light can be stored in Bose-Einstein condensates for over a second. Here we propose a method for realizing a controlled phase gate between two stored photons. The photons are both stored in the ground state of the effective trapping potential inside the condensate. The collision-induced interaction is enhanced by adiabatically increasing the trapping frequency and by using a Feshbach resonance. A controlled phase shift of $π$ can be achieved in one second.

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Arnaud Rispe, Bing He, Christoph Simon. 2010-09-30. Photon-photon gates in Bose-Einstein condensates. https://doi.org/10.1103/physrevlett.107.043601

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