Higher-order perturbation theory for decoherence in Grover’s algorithm
نویسندگان
چکیده
منابع مشابه
Higher order perturbation theory for decoherence in Grover’s algorithm
In this paper, we study decoherence in Grover’s quantum search algorithm using a perturbative method. We assume that each two-state system (qubit) that belongs to a register suffers a phase flip error (σz error) with probability p independently at every step in the algorithm, where 0 ≤ p ≤ 1. Considering an n-qubit density operator to which Grover’s iterative operation is applied M times, we ex...
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ژورنال
عنوان ژورنال: Physical Review A
سال: 2005
ISSN: 1050-2947,1094-1622
DOI: 10.1103/physreva.72.042305