Tuesday, August 27, 2019

Quantum Internet Update

"A super-secure quantum internet just took another step closer to reality":
Now physicists at the University of Science and Technology of China and the University of Vienna in Austria have found a way to ship even more data using something called quantum trits, or qutrits...

Conventional bits used to encode everything from financial records to YouTube videos are streams of electrical or photonic pulses than can represent either a or a 0. Qubits, which are typically electrons or photons, can carry more information because they can be polarized in two directions at once, so they can represent both a and a 0 at the same time. Qutrits, which can be polarized in three different dimensions simultaneously, can carry even more information. In theory, this can then be transmitted using quantum teleportation.