论文标题
Floquet Engineering Bunk Odd频率超导对
Floquet engineering bulk odd-frequency superconducting pairs
论文作者
论文摘要
我们介绍了Floquet Odd频率超导对的概念，并在时间周期性的常规超导体中建立了它们的出现，其中连续的时间变换不变性被损坏。我们表明，这些异国情调的库珀对是可能的，因为时间周期系统中的浮雕模式提供了一个额外的索引（floquet索引），该指数扩大了对对称性的分类，在静态状态中没有类似物的分类。因此，我们的结果为奇数超导对，为Floquet工程动力学超导状态铺平了一条不同的途径。
We introduce the concept of Floquet odd-frequency superconducting pairs and establish their emergence in time-periodic conventional superconductors, where the continuous time-translation invariance is broken. We show that these exotic Cooper pairs are possible because the Floquet modes in time-periodic systems provide an additional index (a Floquet index) that broadens the classification of pair symmetries, with no analog in the static regime. Our results thus put forward a different route for odd-frequency superconducting pairs and pave the way for Floquet engineered dynamical superconducting states.
