Linear amplification and quantum cloning for non-Gaussian continuous variables
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Overview
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We investigate phase-insensitive linear amplification at the quantum limit for single-and two-mode states and show that there exists a broad class of non-Gaussian states whose nonclassicality survives even at an arbitrarily large gain. We identify the corresponding observable nonclassical effects and find that they include, remarkably, two-mode entanglement. The implications of our results for quantum cloning outside the Gaussian regime are also addressed. © IOP Publishing Ltd and Deutsche Physikalische Gesellschaft.
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Nha, H., Milburn, G. J., & Carmichael, H. J
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Nha, Hyunchul||Milburn, GJ||Carmichael, HJ
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https://hdl.handle.net/1969.1/185194
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http://dx.doi.org/10.1088/1367-2630/12/10/103010