论文标题
组合耦合对在两个组件伦敦模型中打破时间交流对称性四倍状态的影响的影响
Effects of intercomponent couplings on the appearance of time-reversal symmetry breaking fermion quadrupling state in two-component London models
论文作者
论文摘要
最近在Ba $ _ {1-x} $ _x $ _x $ _x $ _x $ _2 $ as $ _2 $的情况下，对破坏$ Z_2 $ time-time倒流对称性的玻璃体金属状态的检测已有报道。这是损坏时间反转对称性的费米子四肢的金属状态。因此，它没有库珀对的凝结，但在费米金四重奏之间有远距离的顺序。在本手稿中，我们通过蒙特卡洛模拟在两个组成伦敦模型中研究了这一阶段的出现，这是各种组合耦合的函数。
A detection of bosonic metallic state that breaks the $Z_2$ time-reversal symmetry has been recently reported in Ba$_{1-x}$K$_x$Fe$_2$As$_2$ with a doping level $x \approx 0.8$. This is a metallic state of fermionic quadruplets that breaks time-reversal symmetry. As such, it has no condensate of Cooper pairs but has a long-range order between fermionic quartets. In the present manuscript, we investigate the emergence of this phase in a two-component London model via Monte Carlo simulations as a function of various intercomponent couplings.
