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Article Dans Une Revue The European Physical Journal D : Atomic, molecular, optical and plasma physics Année : 2006

Dissipative decoherence in the Grover algorithm

O. V. Zhirov
  • Fonction : Auteur
Dima Shepelyansky

Résumé

Using the methods of quantum trajectories we study effects of dissipative decoherence on the accuracy of the Grover quantum search algorithm. The dependence on the number of qubits and dissipation rate are determined and tested numerically with up to 16 qubits. As a result, our numerical and analytical studies give the universal law for decay of fidelity and probability of searched state which are induced by dissipative decoherence effects. This law is in agreement with the results obtained previously for quantum chaos algorithms.

Dates et versions

hal-00124291 , version 1 (12-01-2007)

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O. V. Zhirov, Dima Shepelyansky. Dissipative decoherence in the Grover algorithm. The European Physical Journal D : Atomic, molecular, optical and plasma physics, 2006, 38, pp.405. ⟨10.1140/epjd/e2006-00046-x⟩. ⟨hal-00124291⟩
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