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Paper 1

Pseudo-Random Circuits from Clifford Plus T-Gates

Yaakov S. Weinstein

Year
2013
Journal
arXiv preprint
DOI
arXiv:1309.3943
arXiv
1309.3943

We explore the implementation of pseudo-random single-qubit rotations and multi-qubit pseudo-random circuits constructed only from Clifford gates and the T-gate, a phase rotation of pi/4. Such a gate set would be appropriate for computations performed in a fault tolerant setting. For single-qubit rotations the distribution of parameters found for unitaries constructed from Clifford plus T quickly approaches that of random rotations and require significantly fewer gates than the construction of arbitrary single-qubit rotations. For Clifford plus T pseudo-random circuits we find an exponential convergence to a random matrix element distribution and a Gaussian convergence to the higher order moments of the matrix element distribution. These convergence rates are insensitive to the number of qubits.

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Paper 2

Clustered error correction of codeword-stabilized quantum codes.

Li Y, Dumer I, Pryadko LP.

Year
2010
Journal
Phys Rev Lett
DOI
10.1103/physrevlett.104.190501
arXiv
-

No abstract.

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