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https://doi.org/10.1103/PhysRevLett.107.080501
Title: | Perturbative quantum error correction | Authors: | Bény, C. | Issue Date: | 16-Aug-2011 | Citation: | Bény, C. (2011-08-16). Perturbative quantum error correction. Physical Review Letters 107 (8) : -. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevLett.107.080501 | Abstract: | We derive simple necessary and sufficient conditions under which a quantum channel obtained from an arbitrary perturbation from the identity can be reversed on a given code to the lowest order in fidelity. We find the usual Knill-Laflamme conditions applied to a certain operator subspace which, for a generic perturbation, is generated by the Lindblad operators. For a weak interaction with an environment, the error space to be corrected is a subspace of that spanned by the interaction operators, selected by the environment's initial state. © 2011 American Physical Society. | Source Title: | Physical Review Letters | URI: | http://scholarbank.nus.edu.sg/handle/10635/115229 | ISSN: | 00319007 | DOI: | 10.1103/PhysRevLett.107.080501 |
Appears in Collections: | Staff Publications |
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