Conical Diffraction and Composite Lieb Bosons in Photonic Lattices

• Main Authors: Diebel, Falko, Leykam, Daniel, Kroesen, Sebastian, Denz, Cornelia, Desyatnikov, Anton S.
• Other Authors: School of Physical and Mathematical Sciences
• Format: Article
• Language: English
• Published: 2017
• Subjects: Conical Intersection; Conical Diffraction
• Online Access: https://hdl.handle.net/10356/86671; http://hdl.handle.net/10220/44130
• Institution: Nanyang Technological University

Pseudospin describes how waves are distributed between different “internal” degrees of freedom or microscopic states, such as polarizations, sublattices, or layers. Here, we experimentally demonstrate and explain wave dynamics in a photonic Lieb lattice, which hosts an integer pseudospin s=1 conical...