Bose-Einstein condensate as a quantum memory for a photonic polarization qubit
Quantum Physics
2012-02-15 v2
Abstract
A scheme based on electromagnetically induced transparency is used to store light in a Bose-Einstein condensate. In this process, a photonic polarization qubit is stored in atomic Zeeman states. The performance of the storage process is characterized and optimized. The average process fidelity is 1.000 +/- 0.004. For long storage times, temporal fluctuations of the magnetic field reduce this value, yielding a lifetime of the fidelity of 1.1 +/- 0.2 ms. The write-read efficiency of the pulse energy can reach 0.53 +/- 0.05.
Keywords
Cite
@article{arxiv.1112.4733,
title = {Bose-Einstein condensate as a quantum memory for a photonic polarization qubit},
author = {Stefan Riedl and Matthias Lettner and Christoph Vo and Simon Baur and Gerhard Rempe and Stephan Dürr},
journal= {arXiv preprint arXiv:1112.4733},
year = {2012}
}