Abstract
A practical quantum computer must not merely store information, but also process it. To prevent errors introduced by noise from multiplying and spreading, a fault-tolerant computational architecture is required. Current experiments are taking the first steps toward noise-resilient logical qubits. But to convert these quantum devices from memories to processors, it is necessary to specify how a universal set of gates is performed on them. The leading proposals for doing so, such as magic-state distillation and colour-code techniques, have high resource demands. Alternative schemes, such as those that use high-dimensional quantum codes in a modular architecture, have potential benefits, but need to be explored further.
Original language | English |
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Pages (from-to) | 172-179 |
Number of pages | 8 |
Journal | Nature |
Volume | 549 |
Issue number | 7671 |
DOIs | |
Publication status | Published - 13 Sept 2017 |
Externally published | Yes |