论文标题
超导岛的合成网络中的顺序参数焦点和临界温度增强
Order parameter focalization and critical temperature enhancement in synthetic networks of superconducting islands
论文作者
论文摘要
提出了De Gennes-Alexander Micronetworks理论的概括。在此框架中,超导岛的合成网络的相变是通过针对颗粒系统案例的Ginzburg-Landau方法来描述的。仔细解释了该理论的一般含义。作为一个具体示例,我们证明了星网络支持顺序参数的指数定位,并伴随着系统的临界温度的增强。这些发现有助于阐明约瑟夫森耦合超导岛的合成网络中相变的物理。
A generalization of the de Gennes-Alexander micronetworks theory is presented. In this framework, the phase transition of synthetic networks of superconducting islands is described by means of a Ginzburg-Landau approach adapted to the case of granular systems. The general implications of the theory are carefully explained. As a specific example, we demonstrate that star networks support the exponential localization of the order parameter accompanied by an enhancement of the critical temperature of the system. These findings contribute to clarify the physics of the phase transitions in synthetic networks of Josephson-coupled superconducting islands.