No-go theorem for Gaussian quantum error correction
We prove that Gaussian operations are of no use for protecting Gaussian states against Gaussian errors in quantum communication protocols. Specifically, we introduce a new quantity characterizing any single-mode Gaussian channel, called entanglement degradation, and show that it cannot decrease via...
| Prif Awduron: | , , |
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| Fformat: | Erthygl |
| Iaith: | en_US |
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American Physical Society
2011
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| Mynediad Ar-lein: | http://hdl.handle.net/1721.1/64768 |