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Quantum phase estimation algorithm in presence of static imperfections
Ignacio García-Mata and Dima L. Shepelyansky
par - 21 novembre 2007
We study numerically the effects of static imperfections and residual couplings between qubits for the quantum phase estimation algorithm with two qubits. We show that the success probability of the algorithm is affected significantly more by static imperfections than by random noise errors in quantum gates. An improvement of the algorithm accuracy can be reached by application of the Pauli-random-error-correction method (PAREC).