Year: 2013
Type: article
Abstract: State distillation is the process of taking a number of imperfect copies of a particular quantum state and producing fewer better copies. Until recently, the lowest overhead method of distilling states produced a single improved [formula: see text] state given 15 input copies. New block code state distillation methods can produce k improved [formula: see text] states given 3k + 8 input copies, potentially significantly reducing the overhead associated with state distillation. We construct an explicit surface code implementation of block code state distillation and quantitatively compare the overhead of this approach to the old. We find that, using the best available techniques, for parameters of practical interest, block code state distillation does not always lead to lower overhead, and, when it does, the overhead reduction is typically less than a factor of three.
Source: Scientific Reports
DOI: 10.1038/srep01939
Authors: Austin G. Fowler, Simon J. Devitt, Cody Jones
Language: English
Subfield: Artificial Intelligence
Field: Computer Science
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,690
Funders: National Security Agency, Ministry of Education, Culture, Sports, Science and Technology, Intelligence Advanced Research Projects Activity, Australian Research Council, Japan Society for the Promotion of Science, Centre of Excellence for Quantum Computation and Communication Technology, Australian Research Council, Army Research Office
OpenAlex ID: W1977033953