Ontology highlight
ABSTRACT:
SUBMITTER: Lu HI
PROVIDER: S-EPMC5100700 | biostudies-literature | 2016 May
REPOSITORIES: biostudies-literature
Lu H-I HI Schemmer M M Aycock L M LM Genkina D D Sugawa S S Spielman I B IB
Physical review letters 20160520 20
We realized a quantum geometric "charge" pump for a Bose-Einstein condensate (BEC) in the lowest Bloch band of a novel bipartite magnetic lattice. Topological charge pumps in filled bands yield quantized pumping set by the global-topological-properties of the bands. In contrast, our geometric charge pump for a BEC occupying just a single crystal momentum state exhibits nonquantized charge pumping set by local-geometrical-properties of the band structure. Like topological charge pumps, for each p ...[more]