Artificial magnetic field for synthetic quantum matter without dynamical modulation

Modulation instability in the nonlinear Schrödinger equation with a synthetic magnetic field: gauge matters

We theoretically investigate the phenomenon of modulation instability for systems obeying nonlinear Schrödinger equation, which are under the influence of an external homogeneous synthetic magnetic field. For an initial condition, the instability is detected numerically by comparing dynamics with and without a small initial perturbation; the perturbations are characterized in a standard fashion by wavevectors in momentum space. We demonstrate that the region of (in)stability in momentum space, as well as time-evolution in real space, for identical initial conditions, depend on the choice of th…

两腿环梯中相互作用玻色子的动力学与人工磁通量及ac驱动调制

Dynamics of interacting bosons in a two-leg ring ladder with artificial magnetic flux and ac-driven modulations

研究通过人工磁通量和ac驱动调制控制两腿环梯中相互作用玻色子的非平衡动力学，实现手性和反手性动力学的转换。

Synthetic Dimensions for Cold Atoms from Shaking a Harmonic Trap

We introduce a simple scheme to implement synthetic dimensions in ultracold atomic gases, which only requires two basic and ubiquitous ingredients: the harmonic trap, which confines the atoms, combined with a periodic shaking. In our approach, standard harmonic oscillator eigenstates are reinterpreted as lattice sites along a synthetic dimension, while the coupling between these lattice sites is controlled by the applied time-modulation. The phase of this modulation enters as a complex hopping phase, leading straightforwardly to an artificial magnetic field upon adding a second dimension. We s…

合成磁场中谐振阱费米气体的人造磁性

Artificial magnetism for a harmonically trapped Fermi gas in a synthetic magnetic field

本文解析研究了均匀合成磁场中三维自旋极化谐振阱理想费米气体的人造磁性，在热力学极限下将人造 Landau 抗磁性与 de Haas-van Alphen 效应统一于单一框架，并指出该预测可在当今磁光阱超冷费米原子实验中验证。

固态中的合成极iton物质

Synthetic Polariton Matter in the solid state

本文探讨固态中合成极iton物质的实现，通过半导体微腔中的极iton来研究强关联光子相。

Artificial Magnetic Field Quenches in Synthetic Dimensions

Recent cold atom experiments have realized models where each hyperfine state at an optical lattice site can be regarded as a separate site in a synthetic dimension. In such synthetic ribbon configurations, manipulation of the transitions between the hyperfine levels provide direct control of the hopping in the synthetic dimension. This effect was used to simulate a magnetic field through the ribbon. Precise control over the hopping matrix elements in the synthetic dimension makes it possible to change this artificial magnetic field much faster than the time scales associated with atomic motion…