Publication Date
2006
Journal or Book Title
Physical Review A
Abstract
We investigate the generation of fractional-period states in continuum periodic systems. As an example, we consider a Bose-Einstein condensate confined in an optical-lattice potential. We show that when the potential is turned on nonadiabatically, the system explores a number of transient states whose periodicity is a fraction of that of the lattice. We illustrate the origin of fractional-period states analytically by treating them as resonant states of a parametrically forced Duffing oscillator and discuss their transient nature and potential observability.
DOI
https://doi.org/10.48550/arXiv.cond-mat/0510711
Volume
74
Issue
6
Recommended Citation
Nistazakis, H E.; Porter, Mason A.; and Kevrekidis, PG, "Fractional-period excitations in continuum periodic systems" (2006). Physical Review A. 1107.
https://doi.org/10.48550/arXiv.cond-mat/0510711