Commensurate-Incommensurate Transition of Cold Atoms in an Optical Lattice
H. P. Büchler, G. Blatter, and W. Zwerger
Phys. Rev. Lett. 90, 130401 (2003) - Published 1 April, 2003
Anomalous Tunneling of Phonon Excitations between Two Bose-Einstein Condensates
Yu. Kagan, D. L. Kovrizhin, and L. A. Maksimov
Phys. Rev. Lett. 90, 130402 (2003) - Published 2 April, 2003
