Researchers solve a foundational problem in transmitting quantum information

https://phys.org/news/2024-02-foundational-problem-transmitting-quantum.html

"transmitting quantum information over 10s to 100 μm from one quantum dot to another converting electron (matter) information into light  (wave) information, by generating light–matter hybrid states... couple a few electrons in quantum dot to THz split-ring resonator... electrons and THz electromagnetic waves confined to ultra-small area, maintaining light–electron coupling strength... large-scale quantum computers based on semiconductor quantum dots... compatible with existing semiconductor fabrication tools"