Fully heterogeneous prepare-and-measure quantum network for the next stage of quantum internet.

Summary: Imagine if your cell phone could only call one specific friend, and you needed a different phone for every person you knew. That is how the "quantum internet" works right now—machines are built for just one specific job. But scientists have just built a new, flexible quantum network! This new system lets different types of computers and machines connect and work together. They tested it with five machines and proved it can do many secure tasks at once, like sharing secret codes and agreeing on plans, even if some of the machines try to cheat. This is a huge step toward building a real, worldwide quantum internet that anyone can use!