Iterative quantum phase estimation on an IBM quantum processor

被引：0
|
作者：
Zhuravlev, N. A. [1 ,2 ]
Beterov, I. I. [1 ,2 ,3 ]
机构：
[1] Russian Acad Sci, Siberian Branch, Rzhanov Inst Semicond Phys, Akad Lavrenteva 13, Novosibirsk 630090, Russia
[2] Novosibirsk State Univ, Ul Pirogova 2, Novosibirsk 630090, Russia
[3] Novosibirsk State Tech Univ, Prosp Karla Marksa 20, Novosibirsk 630073, Russia
来源：
QUANTUM ELECTRONICS | 2021年 / 51卷 / 06期
基金：
俄罗斯基础研究基金会;
关键词：
quantum processor; quantum phase estimation; modified Kitaev algorithm; two-qubit gate;
D O I：
10.1070/QEL17586
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
An elementary algorithm of quantum phase estimation based on the modified Kitaev algorithm is implemented on two qubits of an IBM quantum processor. This algorithm includes adiabatic preparation of the initial state, controlled phase shift with allowance for the results of previous measurements of qubit states, and single measurement of the qubit quantum state in order to obtain each significant bit of the measured phase. Classical error correction is applied to determine the correct sequence of bits, which makes it possible to eliminate the influence of limited accuracy of two-qubit gates.
引用
收藏
页码：506 / 510
页数：5
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