Significant Leap Forward on Path Toward Quantum Internet
(DigitalJournal) The path towards a quantum Internet has seen a significant leap forward as scientists demonstrated a different method for transmitting quantum information across long distances.
The quantum Internet is a concept based on the theoretical use of quantum computers to construct a new kind of network. Where the traditional internet operates through the use of binary signals in data packets, the quantum Internet would instead utilize quantum signals. This process essentially involves the systems forming the Internet sending information to each other via quantum signals.
One area hampering progress is stability. To achieve a quantum Internet light signals need to be able to interact with electron spins inside distant computers. New research from Osaka University achieves this by applying laser light to transmit quantum information via a quantum dot by changing the spin state of a single electron.
The research has been published in the journal Nature Communications, in a paper called “Angular momentum transfer from photon polarization to an electron spin in a gate-defined quantum dot.”