Superconductive PT-symmetry phase transition in metasurfaces

Research output: Contribution to journalArticlepeer-review


  • Dongyang Wang
  • Chun Li
  • Caihong Zhang
  • Ming Kang
  • Xueqian Zhang
  • Biaobing Jin
  • Zhen Tian
  • Yanfeng Li
  • Jiaguang Han
  • Weili Zhang

Colleges, School and Institutes


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.


Original languageEnglish
Article number021104
Pages (from-to)021104
Number of pages4
JournalApplied Physics Letters
Issue number2
Publication statusPublished - 9 Jan 2017