Tao Zhang

By combining lithium niobate and gallium arsenide, scientists created a chip. In it, quantum dots interact with microresonator modes, and electro-optic tuning of the feedback phase drives the system to an exceptional point. At this singularity, two modes coalesce, and the spectral density of states

Using a flat metasurface the size of a coin, replacing bulky lenses, scientists trapped 11,000 atoms for the first time. This breakthrough paves the way to quantum computers with tens of thousands of qubits, capable of solving problems beyond the reach of ordinary machines.