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  • An Exact Quantum Algorithm ...
    Chen, Chien-Yuan

    International journal of theoretical physics, 2021/1, Volume: 60, Issue: 1
    Journal Article

    This paper proposes a novel quantum learning algorithm based on Bernstein and Vazirani’s quantum circuit to find the dependent variables of the 2-junta problem. Typically, for a given Boolean function f  : {0, 1} n  → {0, 1} that depends on only 2 out of n variables, the dependent variables are obtained by evaluating the function 4 n times in the worst-case. However, the proposed quantum algorithm only requires O ( log 2 n ) function operations in the worst-case. Moreover, the algorithm requires an average of 5.3 function operations at the most when n  ≥ 8.