Quantum teleportation is a process that allows the transfer of quantum information from one location to another without moving the physical particles themselves. It relies on a phenomenon called quantum entanglement, where two particles become linked in such a way that the state of one instantly influences the state of the other, regardless of the distance between them.
In quantum teleportation, the state of a particle is destroyed at the original location while a copy of that state is created at a distant location. This process requires classical communication to share information about the state, ensuring that the original particle's information is perfectly transferred to the new location.