22 citations · 46 across the 8 of their papers we have counts for
8 papers
Period-doubled Bloch states in a Bose-Einstein condensate
Baoguo Yang, Pengju Tang, Xinxin Guo +3
We study systematically the period-doubled Bloch states for a weakly interacting Bose-Einstein condensate in a one-dimensional optical lattice. This kind of state is of form $ψ_k=e…
Isolated Structures in Two-Dimensional Optical Superlattice
Xinhao Zou, Baoguo Yang, Xia Xu +2
Overlaying commensurate optical lattices with various configurations called superlattices can lead to exotic lattice topologies and, in turn, a discovery of novel physics. In this…
Atomic momentum patterns with narrower interval
Baoguo Yang, Shengjie Jin, Xiangyu Dong +3
We studied the atomic momentum distribution for a superposition of Bloch states spreading in the lowest band of an optical lattice after the action of the standing wave pulse. By d…
Observation of Quantum Equilibration in Dilute Bose Gases
Linxiao Niu, Pengju Tang, Baoguo Yang +3
We investigate experimentally the dynamical relaxation of a non-integrable quantum many-body system to its equilibrium state. A Bose-Einstein condensate is loaded into the first ex…
Observation of quantum dynamical oscillations of ultracold atoms in the F and D bands of an optical lattice
Zhongkai Wang, Baoguo Yang, Dong Hu +4
We report the observation of quantum dynamical oscillations of ultracold atomic gases in the F and D bands of a single-well optical lattice. We are able to control the Bragg reflec…
Long-time nonlinear dynamical evolution for P-band ultracold atoms in an optical lattice
Dong Hu, Linxiao Niu, Baoguo Yang +4
We report the long-time nonlinear dynamical evolution of ultracold atomic gases in the P-band of an optical lattice. A Bose-Einstein condensate (BEC) is fast and efficiently loaded…
Density Operator Description of Atomic Ordered Spatial Modes in Cavity QED
Zhen Fang, Baoguo Yang, Xuzong Chen +1
We present a quantum Monte-Carlo simulation for a pumped atom in a strong coupling cavity with dissipation, where two ordered spatial modes are formed for the atomic probability de…
Magnetization Oscillation of a Spinor Condensate Induced by Magnetic Field Gradient
Jie Zhang, Baoguo Yang, Yunbo Zhang
We study the spin mixing dynamics of ultracold spin-1 atoms in a weak non-uniform magnetic field with field gradient , which can flip the spin from +1 to -1 so that the magnetiz…