Summary:

• **What Scientists Discovered**: Researchers found a new way to understand and organize special quantum states called "quantum systems states." Think of it like organizing a messy toy box by figuring out which toys are similar and which ones are different—except scientists did this for tiny particles that follow quantum rules instead of normal physics rules.

• **Why It Matters**: This discovery helps scientists better understand how quantum systems work and behave. By classifying these states in a rigorous way, scientists can now predict what will happen in quantum experiments more accurately, which could lead to better quantum computers and new technologies in the future.