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Setting Boundaries with Memory: Generation of Topological Boundary States in Floquet-Induced Synthetic Crystals | | Yuval Baum
; Gil Refael
; | | Date: |
11 Sep 2017 | | Abstract: | When a d-dimensional quantum system is subjected to a periodic drive, it may
be treated as a (d+1)-dimensional system, where the extra dimension is a
synthetic one. In this work, we take these ideas to the next level by showing
that non-uniform potentials, and particularly edges, in the synthetic dimension
are created whenever the dynamics of system has a memory component. We
demonstrate that topological states appear on the edges of these synthetic
dimensions and can be used as a basis for a wave packet construction. Such
systems may act as an optical isolator which allows transmission of light in a
directional way. We supplement our ideas by an example of a physical system
that shows this type of physics. | | Source: | arXiv, 1709.3507 | | Services: | Forum | Review | PDF | Favorites | |
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