thermalization, error correction, and memory lifetime for ising anyon systems
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ID: 129709
2014
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Abstract
We consider two-dimensional lattice models that support Ising anyonic excitations and are coupled to a thermal bath. We propose a phenomenological model for the resulting short-time dynamics that includes pair creation, hopping, braiding, and fusion of anyons. By explicitly constructing topological quantum error-correcting codes for this class of system, we use our thermalization model to estimate the lifetime of the quantum information stored in the encoded spaces. To decode and correct errors in these codes, we adapt several existing topological decoders to the non-Abelian setting. We perform large-scale numerical simulations of these two-dimensional Ising anyon systems and find that the thresholds of these models range from 13% to 25%. To our knowledge, these are the first numerical threshold estimates for quantum codes without explicit additive structure.
| Reference Key |
brell2014physicalthermalization,
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| Authors | ;Courtney G. Brell;Simon Burton;Guillaume Dauphinais;Steven T. Flammia;David Poulin |
| Journal | american journal of transplantation |
| Year | 2014 |
| DOI |
10.1103/PhysRevX.4.031058
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| URL | |
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