172 citations · 269 across the 10 of their papers we have counts for
10 papers
A framework for quantum homomorphic encryption with experimental demonstration
Yu Zhang, Li Yu, Qi-Ping Su +7
Quantum homomorphic encryption (QHE) is an encryption method that allows quantum computation to be performed on one party's private data with the program provided by another party,…
Experimental demonstration of quantum walks with initial superposition states
Qi-Ping Su, Yu Zhang, Li Yu +9
The preparation of initial superposition states of discrete-time quantum walks (DTQWs) are necessary for the study and applications of DTQWs. In linear optics, it is easy to prepar…
Experimental simulation of quantum temporal steering beyond rotating-wave approximation
Shao-Jie Xiong, Yu Zhang, Zhe Sun +6
Characterizing the dynamics of open systems usually starts with a perturbative theory and involves various approximations, such as the Born, Markov and rotating-wave approximation…
Quantum phase transition in an atom-molecule conversion system with atomic hopping
Ning-Ju Hui, Li-Hua Lu, Xiao-Qiang Xu +1
The quantum phase transition in an atom-molecule conversion system with atomic hopping between different hyperfine states is studied. In mean field approximation, we give the phase…
Skyrmion dynamics and disintegration in a spin-1 Bose-Einstein condensate
Xiao-Qiang Xu, Jung Hoon Han
Dynamics of skyrmionic spin texture in the spin-1 Bose-Einstein condensate is examined by analytical and numerical means. We show the skyrmion (coreless vortex) to be inherently un…
Emergence of Chiral Magnetism in Spinor Bose-Einstein Condensate with Rashba Coupling
Xiao-Qiang Xu, Jung Hoon Han
Hydrodynamic theory of the spinor BEC condensate with Rashba spin-orbit coupling is presented. A close mathematical analogy of the Rashba-BEC model to the recently developed theory…
Spin-Orbit Coupled Bose-Einstein Condensate under Rotation
Xiao-Qiang Xu, Jung Hoon Han
We examine the combined effects of Rashba spin-orbit (SO) coupling and rotation on trapped spinor Bose-Einstein condensates (BECs). Nature of single particle states is thoroughly e…
The role of inter-well tunneling strength on coherence dynamics of two-species Bose-Einstein condensates
Li-Hua Lu, Xiao-Qiang Xu, You-Quan Li
Coherence dynamics of two-species Bose-Einstein condensates in double wells is investigated in mean field approximation. We show that the system can exhibit decoherence phenomena e…
Instability of Bose-Einstein condensates in tilted lattices with time-periodical modulation
Ning-Ju Hui, Xiao-Qiang Xu, You-Quan Li
We study the dynamical stability of Bose-Einstein condensates in an optical lattice with a time-periodic modulation potential and a constant acceleration force simultaneously. We d…
Enhancing molecular conversion efficiency by a magnetic field pulse sequence
Xiao-Qiang Xu, Li-Hua Lu, You-Quan Li
We propose a strategy to enhance the atom-to-molecule conversion efficiency near a Feshbach resonance. Based on the mean-field approximation, we derive the fixed point solutions of…