Controlled phase gate for solid-state charge-qubit architectures

被引：11

作者：

Schirmer, SG

Oi, DKL

Greentree, AD

机构：

[1] Univ Cambridge, Dept Appl Math & Theoret Phys, Cambridge CB3 0WA, England

[2] Univ Cambridge, Dept Engn, Cambridge CB2 1PZ, England

[3] Univ Melbourne, Sch Phys, Ctr Quantum Comp Technol, Melbourne, Vic 3010, Australia

来源：

PHYSICAL REVIEW A | 2005年 / 71卷 / 01期

关键词：

D O I：

10.1103/PhysRevA.71.012325

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We describe a mechanism for realizing a controlled phase gate for solid-state charge qubits. By augmenting the positionally defined qubit with an auxiliary state, and changing the charge distribution in the three-dot system, we are able to effectively switch the Coulombic interaction, effecting an entangling gate. We consider two architectures, and numerically investigate their robustness to gate noise.

引用

页数：13

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