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69062 |
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|a Huber, Michael G.
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|a Massachusetts Institute of Technology. Department of Nuclear Science and Engineering
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|a Cory, David G.
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|a Pushin, D. A.
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|a Cory, David G.
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|a Arif, M.
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|a Pushin, D. A.
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|a Cory, David G.
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|a Experimental Realization of Decoherence-Free Subspace in Neutron Interferometry
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|b American Physical Society (APS),
|c 2012-02-09T17:13:38Z.
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|z Get fulltext
|u http://hdl.handle.net/1721.1/69062
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|a A decoherence-free subspace (DFS) is an important class of quantum-error-correcting (QEC) codes that have been proposed for fault-tolerant quantum computation. The applications of QEC techniques, however, are not limited to quantum-information processing (QIP). Here we demonstrate how QEC codes may be used to improve experimental designs of quantum devices to achieve noise suppression. In particular, neutron interferometry is used as a test bed to show the potential for adding quantum error correction to quantum measurements. We built a five-blade neutron interferometer that incorporates both a standard Mach-Zender configuration and a configuration based on a DFS. Experiments verify that the DFS interferometer is protected against low-frequency mechanical vibrations. We anticipate these improvements will increase the range of applications for matter-wave interferometry.
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|a United States. National Security Agency
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|a United States. Army Research Office (Contract No. W911NF-05-1-0469)
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|a Canada Excellence Research Chairs Program
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|a en_US
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|a Article
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|t Physical Review Letters
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