Three-and four-body interactions from two-body interactions in spin models: A route to Abelian and non-Abelian fractional Chern insulators
We describe a method for engineering local kbody interactions (k=1,2,3) from two-body couplings in spin-12 systems. When implemented in certain systems with a flat single-particle band with a unit Chern number, the resulting many-body ground states are fractional Chern insulators which exhibit Abeli...
| Main Authors: | , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2013
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