Coherent ground-state transport of neutral atoms

Quantum state transport is an important way to study the energy or information flow. By combining unconventional Rydberg pumping mechanism and diagonal form of van der Waals interactions, we construct a theoretical model via second-order perturbation theory realize long-range coherent inside ground-state manifold neutral atoms systems. With adjustment Rabi frequencies interatomic distance, this can be used simulate various single-body physics phenomena such as Heisenberg $XX$ spin chain restricted in single-excitation manifold, coherently perfect quantum transfer, parameter-adjustable Su-Schrieffer-Heeger model, chiral motion atomic excitation triangle by varying geometrical arrangement three atoms, which effectively avoids influence spontaneous emission at same time. Moreover, position fluctuation on fidelity transmission discussed detail, corresponding numerical results show that our work provides robust easily implemented scheme for with atoms.