3 papers
cond-mat.quant-gas2026
Dynamical control of particle jets from a driven condensate in a one-dimensional lattice with double-well potential
Z. Li, L. Q. Lai
We investigate the nonlinear dynamics of a Bose-Einstein condensate trapped in a double-well potential of a one-dimensional lattice, where the interatomic interactions are periodic…
quant-ph2025
Generally covariant geometric momentum and geometric potential for a Dirac fermion on a two-dimensional hypersurface
Z. Li, L. Q. Lai
Geometric momentum is the appropriate momentum for a particle constrained to move on a curved surface, which depends on the extrinsic curvature and leads to observable effects, and…
cond-mat.quant-gas2025
Instability and particle current control of a parametrically driven Bose-Einstein condensate in a ring-shaped lattice
L. Q. Lai
We investigate the dynamics of a Bose-Einstein condensate in a one-dimensional ring-shaped lattice with the Peierls phase and site-dependent modulations, where the condensate is co…