Journal article
Single photon quantum non-demolition measurements in the presence of inhomogeneous broadening
AD Greentree, RG Beausoleil, LCL Hollenberg, WJ Munro, K Němoto, S Prawer, TP Spiller
New Journal of Physics | IOP PUBLISHING LTD | Published : 2009
Abstract
Electromagnetically induced transparency (EIT) has often been proposed for generating nonlinear optical effects at the single photon level; in particular, as a means to effect a quantum non-demolition measurement of a single-photon field. Previous treatments have usually considered homogeneously broadened samples, but realizations in any medium will have to contend with inhomogeneous broadening. Here we reappraise an earlier scheme (Munro et al 2005 Phys. Rev. A 71 033819) with respect to inhomogeneities and show an alternative mode of operation that is preferred in an inhomogeneous environment. We further show the implications of these results on a potential implementation in diamond-contai..
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Grants
Awarded by Australian Research Council
Funding Acknowledgements
ADG thanks Chun-Hsu Su for useful discussions, the Japan Society for the Promotion of Science for an Invitation Fellowship that facilitated some of this work and is the recipient of an Australian Research Council Queen Elizabeth II Fellowship (DP0880466). LCLH is the recipient of an Australian Research Council Australian Professorial Fellowship (DP0770715). This work was supported in part by MEXT, NICT and JSPS in Japan and the EU project QAP. This work was partially supported by DARPA and the Air Force Office of Scientific Research through AFOSR Contract No. FA9550-07-C-0030, and in part was supported by the Australian Research Council Centre of Excellence for Quantum Computer Technology, and by the DEST.