Information transmitted between two particles instead of standard three
Quantum teleportation just got simpler and more reliable. The enhanced technique could lead to secure quantum networks for communication and computing.
Despite its sci-fi connotation, quantum teleportation doesn’t magically move objects but instead transmits fragile information. Unlike classical data — the 1s and 0s used in electronics — quantum information can exist in multiple states at once, as long as the particles encoding the data are not disturbed or measured. Teleportation allows for the transfer of a particle’s quantum state from one particle to another.
The standard procedure for quantum teleportation, proposed in 1993, requires three particles in all: the particle to be teleported, dubbed C, plus a pair of particles, A and B, that are entangled, meaning that they are linked in a way that measuring a property of one instantly reveals the value of that property for the other. The sender measures the desired property of particles A and C,