Atomic quantum simulator for lattice gauge theories and ring exchange models.
We present the design of a ring exchange interaction in cold atomic gases subjected to an optical lattice using well-understood tools for manipulating and controlling such gases. The strength of this interaction can be tuned independently and describes the correlated hopping of two bosons. We discuss a setup where this coupling term may allow for the realization and observation of exotic quantum phases, including a deconfined insulator described by the Coulomb phase of a three-dimensional U(1) lattice gauge theory.
Büchler
H P
HP
Institute for Quantum Optics and Quantum Information of the Austrian Academy of Science, Innsbruck.
Hermele
M
M
Huber
S D
SD
Fisher
Matthew P A
MP
Zoller
P
P