TY - JOUR
T1 - Quantum-noise properties of matter-wave gap solitons
AU - Lee, Ray Kuang
AU - Ostrovskaya, Elena A.
AU - Kivshar, Yuri S.
AU - Lai, Yinchieh
PY - 2005/9
Y1 - 2005/9
N2 - We study quantum-noise squeezing and quantum correlations of gap solitons in a Bose-Einstein condensate loaded into a one-dimensional optical lattice. By employing a linearized quantum theory we find that quantum-noise squeezing of gap solitons, produced during their evolution, is enhanced compared with the atomic solitons in a lattice-free case due to intrasoliton structure of quantum correlations induced by the Bragg scattering in the periodic potential. We also show that nonlinear interaction of gap solitons in dynamically stable bound states can produce strong atom-number correlation between the soliton pairs.
AB - We study quantum-noise squeezing and quantum correlations of gap solitons in a Bose-Einstein condensate loaded into a one-dimensional optical lattice. By employing a linearized quantum theory we find that quantum-noise squeezing of gap solitons, produced during their evolution, is enhanced compared with the atomic solitons in a lattice-free case due to intrasoliton structure of quantum correlations induced by the Bragg scattering in the periodic potential. We also show that nonlinear interaction of gap solitons in dynamically stable bound states can produce strong atom-number correlation between the soliton pairs.
UR - http://www.scopus.com/inward/record.url?scp=28844442287&partnerID=8YFLogxK
U2 - 10.1103/PhysRevA.72.033607
DO - 10.1103/PhysRevA.72.033607
M3 - Article
SN - 1050-2947
VL - 72
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
IS - 3
M1 - 033607
ER -