标题： 在具有一个极小值的势中能否发生自发对称性破缺？ 显示英文标题

标题： Can spontaneous symmetry breaking occur in potential with one minima?

摘要： 当物理系统所具有的对称性在系统的基态中未被保持时，就会发生自发对称性破缺。 尽管从数学观点来看对称性破缺的过程相当明确，但该现象的物理解释值得更好地理解。 在本说明中，我们提供了一个机械系统中对称性破缺的简单而有启发性的例子。 它表明，在具有单个极小值的势场中，自发对称性破缺可以发生在空间扩展的解上。 显示英文摘要

摘要： Spontaneous symmetry breaking occurs when the symmetry that a physical system possesses, is not preserved for the ground state of the system. Although the procedure of symmetry breaking is quite clear from the mathematical point of view, the physical interpretation of the phenomenon is worth to be better understood. In this note we present a simple and instructive example of the symmetry breaking in a mechanical system. It demonstrates that the spontaneous symmetry breaking can occur for the spatially extended solutions in a potential characterised by a single minimum.