Quantum phase estimation algorithm in presence of static imperfections |
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Authors: | I García-Mata D L Shepelyansky |
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Institution: | (1) Laboratoire de Physique Théorique, Université de Toulouse III, CNRS, 31062 Toulouse, France |
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Abstract: | 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). |
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Keywords: | 03 67 Lx Quantum computation 85 25 Cp Josephson devices 24 10 Cn Many-body theory |
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