标题： 摆动小量子系统远离控制参数的可用值 显示英文标题

标题： Swinging small quantum systems out of available values of control parameters

摘要： 当一个量子系统被制备在其多体基态时，可以通过改变其控制参数将其绝热地驱动到另一个基态。 然而，依赖于绝热性的方法在实验上是不合理的。 此外，控制参数的目标值可能出现在实验可访问范围之外。 然而，如果已知其在某些基下的分解，可以通过控制参数的时间变化的巧妙协议达到指示的目标状态。 结果表明，这种协议可以在最优控制理论的框架下获得。 在本文中，我们展示了如何将这种优化方案应用于小量子系统，将相互作用强度作为控制参数。 我们认为，所提出的方法可以创造性地扩展到各种复杂的量子系统。 显示英文摘要

摘要： When a quantum system is prepared in its many-body ground state, it can be adiabatically driven to another ground state by changing its control parameter. However, relying on adiabaticity is experimentally unjustified. Moreover, the target value of the control parameter may occur outside the experimentally accessible range. The indicated target state, however, can still be reached within a clever protocol of temporal changes of the control parameter provided its decomposition into some basis is known. It turns out that such a protocol can be obtained in the framework of the optimal control theory. In this paper, we show how to apply such an optimization scheme to small quantum systems treating interaction strength as the control parameter. We believe that the proposed approach can be creatively extended to various complex quantum systems.