This setup successfully demonstrated remote entanglement — a unique quantum phenomenon where two processors become linked, even though they are not physically connected.
Entanglement is key to allowing processors to work together as if they were side by side, no matter the physical distance between them.
Overcoming challenges in photon transfer
For this system to work effectively, the photon needs to be absorbed successfully when it reaches the receiving processor.
However, imperfections in the waveguide, such as wire joints and connections, can distort the photon during its travel.
This makes it difficult for the photon to be absorbed at the other end.