Work

Controlling Spin Exchange Interactions of Ultracold Atoms in Optical Lattices

Year: 2003

Type: article

Abstract: We describe a general technique that allows one to induce and control strong interaction between spin states of neighboring atoms in an optical lattice. We show that the properties of spin exchange interactions, such as magnitude, sign, and anisotropy, can be designed by adjusting the optical potentials. We illustrate how this technique can be used to efficiently "engineer" quantum spin systems with desired properties, for specific examples ranging from scalable quantum computation to probing a model with complex topological order that supports exotic anyonic excitations.

Source: Physical Review Letters

DOI: 10.1103/physrevlett.91.090402

Authors: L.-M. Duan, E. Demler, M. D. Lukin

Institutions: California Institute of Technology, Harvard University

Language: English

Topic: Cold Atom Physics and Bose-Einstein Condensates

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: National Science Foundation, Multidisciplinary University Research Initiative, Division of Materials Research

Awards: CAREER: Coherence and quantum control of strongly interacting systems, ITR: Institute for Quantum Information, CAREER: Quantum Phases and Phase Transitions in Strongly Correlated Systems