Quantum emulation of a spin system with topologically protected ground states using superconducting quantum circuits

被引：79
作者：
You, J. Q. [1 ,2 ,3 ]
Shi, Xiao-Feng [1 ,2 ,3 ]
Hu, Xuedong [3 ,4 ]
Nori, Franco [3 ,5 ]
机构：
[1] Fudan Univ, Dept Phys, Shanghai 200433, Peoples R China
[2] Fudan Univ, Surface Phys Lab, Natl Key Lab, Shanghai 200433, Peoples R China
[3] RIKEN, Inst Phys & Chem Res, Inst Adv Study, Wako, Saitama 3510198, Japan
[4] SUNY Buffalo, Dept Phys, Buffalo, NY 14260 USA
[5] Univ Michigan, Dept Phys, Ctr Theoret Phys, Ann Arbor, MI 48109 USA
来源：
PHYSICAL REVIEW B | 2010年 / 81卷 / 01期
关键词：
QUBITS; ANYONS; BITS;
D O I：
10.1103/PhysRevB.81.014505
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Using superconducting quantum-circuit elements, we propose an approach to experimentally construct a Kitaev lattice, which is an anisotropic spin model on a honeycomb lattice with three types of nearest-neighbor interactions and having topologically protected ground states. We study two particular parameter regimes to demonstrate both vortex and bond-state excitations. Our proposal outlines an experimentally realizable artificial many-body system that exhibits exotic topological properties.
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收藏
页数：11
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