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Professor Jian-Hua Jiang, School of Physical Science and Technology, Soochow University

Event Date: 
Monday, November 26, 2018 - 3:30pm to 4:30pm

Dirac Mirror, Refraction and Wonderland

Dirac's equation is at the key of various quantum and topological effects in physics. In this talk I will show that how Dirac equation can be simulated in photonic and mechanical systems, as well as their physical effects.

Photonic/phononic band gap with nontrivial topology leads to unusual surface states and reflection phases which are valuable for fundamental science and applications. Type-II Dirac points are shown to host anomalous refraction and robust surface states. We also discover a robust cavity state bound to a dislocation as protected by the concurrent real-space and wavevector-space topology.

Refs:

[1] Wang et al. PRB 93, 235155 (2016)

[2] Xu et al. Optics Express 24, 18059 (2016)

[3] Wang et al. npj Quantum Materials 2, 54 (2017)

[4] Li et al. Nature Communications 9, 2462 (2018)

Jian-Hua Jiang graduated from the University of Science and Technology of China with B.Sc. and Ph.D. and post-doc with Prof. Joe Imry at Weizmann Institute of Science and Prof. Sajeev John at University of Toronto. Jian-Hua Jiang became a professor at Soochow University in 2015.

Event Location: 
McMaster
Location Details: 
ABB-165