时间循环用于在二维狄拉克材料中检测扭力
Time-loops to spot torsion on bidimensional Dirac materials with dislocations
AI总结：
通过时间循环和非线性响应机制，在二维狄拉克材料中探测扭力的一种新方法。
摘要：
假设在适当考虑下，位错可以有意义地用扭力来描述，我们提出了一种基于低能狄拉克场论对二维狄拉克材料描述中此前未探索的时间作用的场景。我们的方法基于实现一种奇特的时间循环，该循环可通过振荡粒子-空穴对来实现，从而克服了由于缺乏第三个空间维度而导致的几何障碍。一般的对称性考虑允许得出结论：只有在非线性响应状态下，我们所寻找的效果才能被观察到。
英文摘要：
Assuming that, with some care, dislocations could be meaningfully described by torsion, we propose here a scenario based on a previously unexplored role of time in the low-energy Dirac field theory description of two-space-dimensional Dirac materials. Our approach is based on the realization of an exotic time-loop that could be realized by oscillating particle-hole pairs, overcoming the well-known geometrical obstructions due to the lack of a third spatial dimension. General symmetry considerations allow concluding that the effects we are looking for can only be seen if we move to the nonlinear response regime.
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