105 citations · 495 across the 18 of their papers we have counts for
18 papers
Solving the Gross-Pitaevskii Equation with Quantic Tensor Trains: Ground States and Nonlinear Dynamics
Qian-Can Chen, I-Kang Liu, Jheng-Wei Li +1
We develop a tensor network framework based on the quantic tensor train (QTT) format to efficiently solve the Gross-Pitaevskii equation (GPE), which governs Bose-Einstein condensat…
Vortex depinning in a two-dimensional superfluid
I-Kang Liu, Srivatsa B. Prasad, Andrew W. Baggaley +2
We employ the Gross--Pitaevskii theory to model a quantized vortex depinning from a small obstacle in a two-dimensional superfluid due to an imposed background superfluid flow. We…
Coherent and incoherent structures in fuzzy dark matter halos
I-Kang Liu, Nick P. Proukakis, Gerasimos Rigopoulos
We show that fuzzy dark matter halos exhibit spatial differentiation in the degree of coherence of the field configuration, ranging from completely coherent in the central solitoni…
Phase transition dimensionality crossover from two to three dimensions in a trapped ultracold atomic Bose gas
Nick Keepfer, I-Kang Liu, Franco Dalfovo +1
The equilibrium properties of a weakly interacting atomic Bose gas across the Berezinskii-Kosterlitz-Thouless (BKT) and Bose-Einstein condensation (BEC) phase transitions are numer…
Synthetic gauge potentials for the dark state polaritons in atomic media
Yu-Hung Kuan, Siang-Wei Shao, I-Kang Liu +4
The quest of utilizing neutral particles to simulate the behaviour of charged particles in a magnetic field makes the generation of artificial magnetic field of great interest. The…
Dynamics of a degenerate Cs-Yb mixture with attractive interspecies interactions
Kali E. Wilson, Alexander Guttridge, I-Kang Liu +5
We probe the collective dynamics of a quantum degenerate Bose-Bose mixture of Cs and Yb with attractive interspecies interactions. Specifically, we excite vertical center o…
Kibble-Zurek Dynamics in a Trapped Ultracold Bose Gas
I-Kang Liu, Jacek Dziarmaga, Shih-Chuan Gou +2
The dynamical evolution of an inhomogeneous ultracold atomic gas quenched at different controllable rates through the Bose-Einstein condensation phase transition is studied numeric…
Phase Diagram of Solitons in the Polar Phase of a Spin-1 Bose-Einstein Condensate
I-Kang Liu, Shih-Chuan Gou, Hiromitsu Takeuchi
We theoretically study the structure of a stationary soliton in the polar phase of spin-1 Bose--Einstein condensate in the presence of quadratic Zeeman effect at zero temperature.…
Dynamical Equilibration Across a Quenched Phase Transition in a Trapped Quantum Gas
I. -K. Liu, S. Donadello, G. Lamporesi +4
The formation of an equilibrium quantum state from an uncorrelated thermal one through the dynamical crossing of a phase transition is a central question of non-equilibrium many-bo…
Hidden long-range order in a spin-orbit coupled two-dimensional Bose gas
Shih-Wei Su, I-Kang Liu, Shih-Chuan Gou +3
A spin-orbit coupled two-dimensional (2D) Bose gas is shown to simultaneously possess quasi and true long-range order in the total and relative phase sectors, respectively. The tot…
Phase Separation and Dynamics of two-component Bose-Einstein condensates
Kean Loon Lee, Nils B. Jørgensen, I-Kang Liu +3
The miscibility of two interacting quantum systems is an important testing ground for the understanding of complex quantum systems. Two-component Bose-Einstein condensates enable t…
Unconventional Bose-Einstein Condensation in a System of Two-species Bosons in the -orbital Bands of a Bipartite Lattice
Jhih-Shih You, I-Kang Liu, Daw-Wei Wang +2
In the context of Gross-Pitaevskii theory, we investigate the unconventional Bose-Einstein condensations in the two-species mixture with -wave symmetry in the second band of a b…
Oscillons in coupled Bose-Einstein condensates
Shih-Wei Su, Shih-Chuan Gou, I-Kang Liu +3
Long-lived, spatially localized, and temporally oscillating nonlinear excitations are predicted by numerical simulation of coupled Gross-Pitaevskii equations. These oscillons close…
Position-dependent spin-orbit coupling for ultracold atoms
S. -W. Su, S. -C. Gou, I. -K. Liu +6
We theoretically explore atomic Bose-Einstein condensates (BECs) subject to position-dependent spin-orbit coupling (SOC). This SOC can be produced by cyclically laser coupling four…
Stochastic Growth Dynamics and Composite Defects in Quenched Immiscible Binary Condensates
I. -K. Liu, R. W. Pattinson, T. P. Billam +7
We study the sensitivity of coupled condensate formation dynamics on the history of initial stochastic domain formation in the context of instantaneously quenched elongated harmoni…
3D quaternionic condensations, Hopf invariants, and skyrmion lattices with synthetic spin-orbit coupling
Yi Li, Xiangfa Zhou, Congjun Wu
We study the topological configurations of the two-component condensates of bosons with the D Weyl-type spin-orbit coupling subject to a harmonic trapping p…
Crystallized merons and inverted merons in the condensation of spin-1 Bose gases with spin-orbit coupling
S. -W. Su, I. -K. Liu, Y. -C. Tsai +2
The non-equilibrium dynamics of a rapidly quenched spin-1 Bose gas with spin-orbit coupling is studied. By solving the stochastic projected Gross-Pitaevskii equation, we show that…
Spontaneous Crystallization of Skyrmions and Fractional Vortices in the Fast-rotating and Rapidly-quenched Spin-1 Bose-Einstein Condensates
S. -W. Su, C. -H. Hsueh, I. -K. Liu +4
We investigate the spontaneous generation of crystallized topological defects via the combining effects of fast rotation and rapid thermal quench on the spin-1 Bose-Einstein conden…