57 citations · 183 across the 9 of their papers we have counts for
8 papers · 1 filter
Experimental observation of energy-band Riemann surface
Dali Cheng, Heming Wang, Janet Zhong +3
Non-Hermiticity naturally arises in many physical systems that exchange energy with their environment. The presence of non-Hermiticity leads to many novel topological physics pheno…
Creating high-dimensional topological physics using a single ring resonator
Dali Cheng, Heming Wang, Charles Roques-Carmes +2
In spaces of three or more dimensions, there exists topological physics of significant richness that has no lower-dimensional counterparts. To experimentally explore high-dimension…
Non-Abelian lattice gauge fields in the photonic synthetic frequency dimension
Dali Cheng, Kai Wang, Charles Roques-Carmes +4
Non-Abelian gauge fields provide a conceptual framework for the description of particles having spins. The theoretical importance of non-Abelian gauge fields motivates their experi…
Eigenenergy braids in 2D photonic crystals
Janet Zhong, Charles C. Wojcik, Dali Cheng +1
We consider non-Hermitian energy band theory in two-dimensional systems, and study eigenenergy braids on slices in the two-dimensional Brillouin zone. We show the consequences of r…
Multi-dimensional band structure spectroscopy in the synthetic frequency dimension
Dali Cheng, Eran Lustig, Kai Wang +1
The concept of synthetic dimensions in photonics provides a versatile platform in exploring multi-dimensional physics. Many of these physics are characterized by band structures in…
Artificial non-Abelian lattice gauge fields for photons in the synthetic frequency dimension
Dali Cheng, Kai Wang, Shanhui Fan
Non-Abelian gauge fields give rise to nontrivial topological physics. Here we develop a scheme to create an arbitrary SU(2) lattice gauge field for photons in the synthetic frequen…
Quasi-edge states and topological Bloch oscillation in the synthetic space
Xiaoxiong Wu, Luojia Wang, Guangzhen Li +6
In physics, synthetic dimensions trigger great interest to manipulate light in different ways, while in technology, lithium niobate shows important capability towards on-chip appli…
Optical neural network architecture for deep learning with the temporal synthetic dimension
Bo Peng, Shuo Yan, Dali Cheng +5
The physical concept of synthetic dimensions has recently been introduced into optics. The fundamental physics and applications are not yet fully understood, and this report explor…