Scientists create an optical conveyor belt for quasiparticles

https://phys.org/news/2024-05-scientists-optical-conveyor-belt-quasiparticles.html

"interference between 2 lasers creating dynamic potential energy landscape moving polaritons in semiconductor-based microcavities at 0.1%  light speed, driving polaritons into laser-like in semiconductor:  rapid modulation of energy landscape resulting in introduction of synthetic dimension... controls energy landscape concretely: lattice depths, interactions between neighboring particles... dissipationless optical waveguiding without energy loss, topological photonic devices: quantum metrology, quantum information"