Photonic Topological Insulator in Synthetic Dimensions

Understand

Topological phases enable protected transport along the edges of materials, offering immunity against scattering from disorder and imperfections.

• These phases were suggested and demonstrated not only for electronic systems, but also for electromagnetic waves, cold atoms, acoustics, and even mechanics.
• Their potential applications range from spintronics and quantum computing to highly efficient lasers.
• Traditionally, the underlying model of these systems is a spatial lattice in two or three dimensions.