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Paper 1

The Small Stellated Dodecahedron Code and Friends

Jonathan Conrad, Christopher Chamberland, Nikolas P. Breuckmann, Barbara M. Terhal

Year
2017
Journal
arXiv preprint
DOI
arXiv:1712.07666
arXiv
1712.07666

We explore a distance-3 homological CSS quantum code, namely the small stellated dodecahedron code, for dense storage of quantum information and we compare its performance with the distance-3 surface code. The data and ancilla qubits of the small stellated dodecahedron code can be located on the edges resp. vertices of a small stellated dodecahedron, making this code suitable for 3D connectivity. This code encodes 8 logical qubits into 30 physical qubits (plus 22 ancilla qubits for parity check measurements) as compared to 1 logical qubit into 9 physical qubits (plus 8 ancilla qubits) for the surface code. We develop fault-tolerant parity check circuits and a decoder for this code, allowing us to numerically assess the circuit-based pseudo-threshold.

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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.

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