Robust Quantum Computing in Decoherence-Free Subspaces with Double-Dot Spin Qubits

被引：1

作者：

Feng Zhi-Bo ^{[1
]}

Zhang Chun-Li ^{[1
]}

Zhou Yun-Qing ^{[2
]}

机构：

[1] Xuchang Univ, Sch Elect Engn, Xuchang 461000, Peoples R China

[2] Zhejiang Ocean Univ, Dept Phys, Zhoushan 316000, Peoples R China

来源：

COMMUNICATIONS IN THEORETICAL PHYSICS | 2014年 / 61卷 / 02期

基金：

中国国家自然科学基金;

关键词：

decoherence-free subspace; double-dot spin qubit; transmission line resonator; COMPUTATION;

D O I：

10.1088/0253-6102/61/2/06

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present a scheme for implementing robust quantum gates in decoherence-free subspaces (DFSs) with double-dot spin qubits. Through the resonator-assisted interaction, the controllable interqubit couplings can be achieved only by adjusting the qubit transition frequencies. We construct a set of logic gates on the DFS-encoded qubits to eliminate the collective noise effects, and thus the gate fidelities can be enhanced remarkably. This proposal may offer a potential approach to realize the robust quantum computing with spin qubits.

引用

页码：181 / 186

页数：6

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