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Interaction induced topological Bogoliubov excitations in a spin-orbit coupled Bose-Einstein condensate
Guan-Hua Huang, Guang-Quan Luo, Zhigang Wu +1
We study topologically non-trivial excitations of a weakly interacting, spin-orbit coupled Bose-Einstein condensate in a two-dimensional square optical lattice, a system recently r…
Detecting chiral pairing and topological superfluidity using circular dichroism
J. M. Midtgaard, Zhigang Wu, N. Goldman +1
Realising and probing topological superfluids is a key goal for fundamental science, with exciting technological promises. Here, we show that chiral pairing in a two-dim…
Many-Body Echo
Yang-Yang Chen, Pengfei Zhang, Wei Zheng +2
In this letter we propose a protocol to reverse a quantum many-body dynamical process. We name it "many-body echo" because the underlying physics is closely related to the spin ech…
Induced -wave pairing in Bose-Fermi mixtures
Jami J. Kinnunen, Zhigang Wu, Georg M. Bruun
Cooper pairing caused by an induced interaction represents a paradigm in our description of fermionic superfluidity. Here, we present a strong coupling theory for the critical temp…
Dynamics and Density Correlations in Matter Wave Jet Emission of a Driven Condensate
Zhigang Wu, Hui Zhai
Emission of matter wave jets has been recently observed in a Bose-Einstein condensate confined by a cylindrical box potential, induced by a periodically modulated inter-particle in…
A mixed dimensional Bose polaron
Niels Jakob Søe Loft, Zhigang Wu, Georg M. Bruun
A new generation of cold atom experiments trapping atomic mixtures in species selective optical potentials opens up the intriguing possibility to create systems in which different…
Three dimensional ring vortex solitons and their stability in Bose-Einstein condensates under magnetic confinement
Li Ji, Deng-Shan Wang, Zhi-Yong Wu +2
The three-dimensional study of the ring vortex solitons is conducted for both attractive and repulsive BECs subject to harmonic potential confinement. A family of stationary ring v…