Journal
SCIENCE
Volume 338, Issue 6114, Pages 1604-1606Publisher
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1227224
Keywords
-
Categories
Funding
- NSF [DMR-1005541, PHY05-51164]
- NSFC [11074140]
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [1005541] Funding Source: National Science Foundation
Ask authors/readers for more resources
Symmetry-protected topological (SPT) phases are bulk-gapped quantum phases with symmetries, which have gapless or degenerate boundary states as long as the symmetries are not broken. The SPT phases in free fermion systems, such as topological insulators, can be classified; however, it is not known what SPT phases exist in general interacting systems. We present a systematic way to construct SPT phases in interacting bosonic systems. Just as group theory allows us to construct 230 crystal structures in three-dimensional space, we use group cohomology theory to systematically construct different interacting bosonic SPT phases in any dimension and with any symmetry, leading to the discovery of bosonic topological insulators and superconductors.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available