supported by the State Key Basic Research Program of China(Grant No.2011CB921504);the National Natural Science Foundation of China(Grant No.91536107)
We report an experimental demonstration of a new scheme to split cold atoms on an atom chip. The atom chip consists of a U-wire and a Z-wire. The cold atom cloud is initially loaded and prepared in the Z-trap, which i...
Project supported by the National Basic Research Program of China(Grant No.2011CB921504);the National Natural Science Foundation of China(Grant No.91536107)
We report the experimental investigation of electromagnetically induced transparency (EIT) in a Zeeman-sublevels A-type system of cold 87Rb atoms in free space. We use the Zeeman substates of the hyperfine energy st...
Project supported by the National Basic Research Program of China(Grant No.2011CB921504);the National Natural Science Foundation of China(Grant No.11104292)
Interaction between Rydberg atoms can be used to control the properties of interatomic interaction in ultracold gases by weakly dressing the atoms with a Rydberg state. Here we investigate the effect of the Rydberg-dr...
supported by the Research Project of Shanghai Science and Technology Commission(Grant No.09DJ1400700);the National Natural Science Foundation of China(Grant Nos.91436105);the National Basic Research Program of China(Grant No.2011CB921504)
We experimentally observe polarization spectroscopy (PS) of the 1S0-3P1 transition of mercury atom gases at 253.7 nm. The PS signal can be observed in all six richly abundant isotopes and the PS signal of six transi...
Project supported by the National Basic Research Program of China(Grant No.2011CB921504);the National Natural Science Foundation of China(Grant No.11104292)
We theoretically investigate quantum phases and transport dynamics of ultracold atoms trapped in an optical lattice in the presence of effective multi-body interaction. When a harmonic external potential is added, sev...
Project supported by the National Natural Science Foundation of China(Grant No.11104292);the National Basic Research Program of China(GrantNo.2011CB921504)
We investigate the transport dynamics of an interacting binary Bose-Einstein condensate in an incommensurate optical lattice and predict a novel splitting of a matter wavepacket induced by disorder potential and inter...
supported by the National Natural Science Foundation of China (Grant No. 11104292);the National Basic Research Program of China (Grant No. 2011CB921504)
We derive the coupled nonpolynomial nonlinear Schr6dinger equations for a two-component Bose-Lmstem conaensate in a quasi-one-dimension geometry and investigate the effects of a tightly transverse trapping on the grou...
Project supported by the National Natural Science Foundation of China (Grant No. 10974211);the National Basic Research Program of China (Grant No. 2011CB921504);the Research Project of Shanghai Science and Technology Commission, China (Grant No. 09DJ1400700)
We report a rapid evaporative cooling method using a hybrid trap which is composed of a quadrupole magnetic trap and a one-beam optical dipole trap. It contains two kinds of evaporative coolings to reach the quantum d...