Format

Send to:

Choose Destination

Related Articles by Review for PubMed (Select 18764242)

See comment in PubMed Commons below
Phys Rev Lett. 2008 Jul 18;101(3):030405. Epub 2008 Jul 16.

Long-living BLOCH oscillations of matter waves in periodic potentials.

Author information

  • 1Dipartimento di Fisica E. R. Caianiello, and Consorzio Nazionale Interuniversitario per le Scienze Fisiche della Materia (CNISM), Universitá di Salerno, I-84081, Baronissi (SA), Italy.

Abstract

The dynamics of matter waves in linear and nonlinear optical lattices subject to a spatially uniform linear force is studied both analytically and numerically. It is shown that by properly designing the spatial dependence of the scattering length it is possible to induce long-living Bloch oscillations of gap-soliton matter waves in optical lattices. This occurs when the effective nonlinearity and the effective mass of the soliton have opposite signs for all values of the crystal momentum in the Brillouin zone. The results apply to all systems modeled by the periodic nonlinear Schrödinger equation, including propagation of light in photonic and photorefractive crystals with tilted band structures.

PMID:
18764242
[PubMed]
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for American Physical Society
    Loading ...
    Write to the Help Desk