Photonic scheme of quantum phase estimation for quantum algorithms via quantum dots

被引：1

作者：

Heo, Jino ^{[1
]}

Choi, Seong-Gon ^{[1
,2
]}

机构：

[1] Chungbuk Natl Univ, Res Inst Comp & Informat Commun Ric, Chungdae Ro 1, Cheongju, South Korea

[2] Chungbuk Natl Univ, Coll Elect & Comp Engn, Chungdae Ro 1, Cheongju, South Korea

来源：

QUANTUM INFORMATION PROCESSING | 2022年 / 21卷 / 01期

基金：

新加坡国家研究基金会;

关键词：

Quantum phase estimation; Quantum algorithm; Controlled-unitary gate; Quantum dot; SINGLE-ELECTRON SPIN; FOURIER-TRANSFORM; DISCRETE LOGARITHMS; HOLE SPIN; MANIPULATION; REALIZATION; LOCKING; QUBIT;

D O I：

10.1007/s11128-021-03335-2

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Various quantum algorithms depend on quantum phase estimation (QPE) as basic blocks or main subroutines to leverage superposition and entanglement during quantum computations. The QPE algorithm estimates the unknown phase of an eigenvalue corresponding to an eigenstate of an arbitrary unitary operator. We propose the photonic scheme of a QPE scheme comprising controlled-unitary gates based on quantum dots confined in optical cavities. For the reliable performance of the proposed QPE scheme constituting an arrangement of controlled-unitary gates, we evaluate the proposed quantum dot system under the effects of vacuum noise and leaky modes in an experimental implementation of the gates.

引用

页数：21

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