Quantum emulation of a spin system with topologically protected ground states using superconducting quantum circuits
J. Q. You, Xiao-Feng Shi, Xuedong Hu, Franco Nori
DOI 10.1103/PhysRevB.81.014505 · Physical Review B
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Abstract
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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