87 citations · 105 across the 8 of their papers we have counts for
8 papers
Macroscopic superposition of vortex states in a matter wave
Lingran Kong, Tianyou Gao, Shi-Guo Peng +7
Generating the vortex-state superposition in a matter wave is demanded in many quantum processes such as quantum memory and quantum metrology. Here we report the experimental gener…
Characterizing the temporal rotation and radial twist of the interference pattern of vortex beam
Longzhi Nie, Lingran Kong, Tianyou Gao +2
We experimentally and theoretically characterize the temporal rotation and radial twist of the interference pattern of vortex beam with its conjugate copy. To quantitatively study…
Phase-locking matter-wave interferometer of vortex states
Lingran Kong, Tianyou Gao, Longzhi Nie +5
Matter-wave interferometer of ultracold atoms with different linear momenta has been extensively studied in theory and experiment. The vortex matter-wave interferometer with differ…
Expansion dynamics of a spherical Bose-Einstein condensate
Ruizong Li, Tianyou Gao, Dongfang Zhang +5
We experimentally and theoretically observe the expansion behaviors of a spherical Bose-Einstein condensate. A rubidium condensate is produced in an isotropic optical dipole trap w…
Observation of quantum phase transition in spin-orbital-angular-momentum coupled Bose-Einstein condensate
Dongfang Zhang, Tianyou Gao, Peng Zou +8
Orbital angular momentum (OAM) of light represents a fundamental optical freedom that can be exploited to manipulate quantum state of atoms. In particular, it can be used to realiz…
Observation of phonon parametric down-conversion in a spherical Bose-Einstein condensate
Tianyou Gao, Jian-Song Pan, Dongfang Zhang +8
We report the observation of parametric down-conversion of phonons in a spherical Bose-Einstein condensate. The spherical symmetry, which is crucial for observing this phenomenon,…
Optimizing the optical imaging system by \emph{in-situ} imaging the plugged hole in the ultracold atoms
Tianyou Gao, Dongfang Zhang, Lingran Kong +2
Optical absorption imaging has become a common technique for detecting the density distribution of ultracold atoms. The defocus effect generally produces artificial spatial structu…
Production of rubidium Bose-Einstein condensate in an optically-plugged magnetic quadrupole trap
Dong-Fang Zhang, Tian-You Gao, Ling-Ran Kong +2
We have experimentally produced rubidium Bose-Einstein condensate in an optically-plugged magnetic quadrupole (OPQ) trap. A far blue-detuned focused laser beam with a wavelength of…