Compare Papers

Paper 1

Fault-Tolerant Quantum Computation with Constant Overhead

Daniel Gottesman

Year
2013
Journal
arXiv preprint
DOI
arXiv:1310.2984
arXiv
1310.2984

What is the minimum number of extra qubits needed to perform a large fault-tolerant quantum circuit? Working in a common model of fault-tolerance, I show that in the asymptotic limit of large circuits, the ratio of physical qubits to logical qubits can be a constant. The construction makes use of quantum low-density parity check codes, and the asymptotic overhead of the protocol is equal to that of the family of quantum error-correcting codes underlying the fault-tolerant protocol.

Open paper

Paper 2

Fault tolerance with noisy and slow measurements and preparation.

Paz-Silva GA, Brennen GK, Twamley J.

Year
2010
Journal
Phys Rev Lett
DOI
10.1103/physrevlett.105.100501
arXiv
-

No abstract.

Open paper