Observation of photon-assisted tunneling in optical lattices
Authors: Sias C., Lignier H., Singh Y.P., Zenesini A., Ciampini D., Morsch O., Arimondo E.
Autors Affiliation: CNR-INFM, Dipartimento di Fisica “E. Fermi,” Università di Pisa, Largo Pontecorvo 3, 56127 Pisa, Italy ; CNISM Unita Pisa, Pisa, Italy
Abstract: We have observed tunneling suppression and photon-assisted tunneling of Bose-Einstein condensates in an optical lattice subjected to a constant force plus a sinusoidal shaking. For a sufficiently large constant force, the ground energy levels of the lattice are shifted out of resonance and tunneling is suppressed; when the shaking is switched on, the levels are coupled by low-frequency photons and tunneling resumes. Our results agree well with theoretical predictions and demonstrate the usefulness of optical lattices for studying solid-state phenomena.
Journal/Review: PHYSICAL REVIEW LETTERS
Volume: 100 (4) Pages from: 040404 to: 040404
KeyWords: Optical Lattices; Quantum tunneling; DOI: 10.1103/PhysRevLett.100.040404Citations: 202data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2023-09-24References taken from IsiWeb of Knowledge: (subscribers only)Connecting to view paper tab on IsiWeb: Click hereConnecting to view citations from IsiWeb: Click here