Quantum state transfer in the presence of nonhomogeneous external potentials

Loading...
Thumbnail Image
Files
3534.pdf(879.33 KB)
Published Version
Date
2013
Authors
Giorgi, Gian Luca
Busch, Thomas
Journal Title
Journal ISSN
Volume Title
Publisher
American Physical Society
Research Projects
Organizational Units
Journal Issue
Abstract
Heisenberg-type spin models in the limit of a low number of excitations are useful tools to study basic mechanisms in strongly correlated and magnetic systems. Many of these mechanisms can be experimentally tested using ultracold atoms. Here, we discuss the implementation of a quantum state transfer protocol in a tight-binding chain in the presence of an inhomogeneous external potential. We show that it can be used to extend the parameter range in which high-fidelity state transfer can be achieved beyond the well established weak-coupling regime. Among the class of mirror-reflecting potentials that allow for high fidelity quantum state transfer, the harmonic case is especially relevant because it allows us to formulate a proposal for the experimental implementation of the protocol in the context of optical lattices.
Description
Keywords
Atomic mott insulator , Ultracold atoms , Transition , Superfluid , Phase , Gas
Citation
Giorgi, G. L. and Busch, T. (2013) 'Quantum state transfer in the presence of nonhomogeneous external potentials', Physical Review A, 88(6), 062309. (5pp). doi: 10.1103/PhysRevA.88.062309
Copyright
© 2013, American Physical Society