Superconductive PT-symmetry phase transition in metasurfaces
Superconductive PT-symmetry phase transition in metasurfaces
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DOI：
10.1063/1.4973769
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发表时间：
2017-01
影响因子：
4
通讯作者：
Dongyang Wang;Chun Li;Caihong Zhang;M. Kang;Xueqian Zhang;B. Jin;Z. Tian;Yanfeng Li;
中科院分区：
文献类型：
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作者：
Dongyang Wang;Chun Li;Caihong Zhang;M. Kang;Xueqian Zhang;B. Jin;Z. Tian;Yanfeng Li;
我们实验证明了一个有效的宇称时间（PT）的对称性打破通过本征偏振变化的杂化超颖表面的动态过程。该超颖表面由两个耦合谐振器组成，分别由金属和II型超导体氮化铌制成。在2 ~ 13 K的温度范围内，杂化体系都能通过有效的PT对称相变点，为研究动态PT对称相变提供了一种可行的途径.
We experimentally demonstrate a dynamic process of effective Parity-Time (PT)-symmetry breaking through eigen-polarization variation in a hybridized metasurface. The metasurface consists of two coupled resonators made from metal and type II superconductor niobium nitride, respectively. By varying the temperature from 2 to 13 K, the hybridized system is able to pass through the effective PT-symmetry phase transition point, providing a feasible way to investigate the dynamic PT-symmetry transition.