Superconducting tetrahedral quantum bits

被引：16

作者：

Feigel'man, MV

Ioffe, LB

Geshkenbein, VB

Dayal, P

Blatter, G

机构：

[1] LD Landau Theoret Phys Inst, Moscow 117940, Russia

[2] Rutgers State Univ, Dept Phys & Astron, Piscataway, NJ 08854 USA

[3] ETH Honggerberg, CH-8093 Zurich, Switzerland

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 92卷 / 09期

基金：

美国国家科学基金会; 俄罗斯基础研究基金会;

关键词：

D O I：

10.1103/PhysRevLett.92.098301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We propose a design for a qubit with four superconducting islands in the topology of a symmetric tetrahedron, uniformly frustrated with one-half flux quantum per loop and one-half Cooper pair per island. This structure emulates a noise-resistant spin-1/2 system in a vanishing magnetic field. The flux frustration boosts quantum fluctuations and relieves the constraints on junction fabrication. Variability of manipulation and optimized readout are additional benefits of this design.

引用

页码：098301 / 1

页数：4

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