Optical control over topological Chern number in moiré materials

Key Points

• The optical control successfully changes the topological Chern number, impacting quantum states.
• Key evidence shows a significant modification observed in band structures, which correlates to the control mechanism.
• The approach involves probing band theory and utilizing optical techniques to manipulate materials at the quantum level.
• This may enable breakthroughs in quantum computing applications due to the reprogrammable nature of moiré materials.