Yokohama National University researchers have teleported information within a diamond, making leaps in quantum information technology according to Eureka Alert. The results of the findings were published in Communication Physics.

"Quantum teleportation permits the transfer of quantum information into an otherwise inaccessible space," said Hideo Kosaka, Yokohama National University professor and author on the study. "It also permits the transfer of information into a quantum memory without revealing or destroying the stored quantum information."

This “inaccessible space” was the carbon atoms in the diamond. Because the atoms are linked, but individually contained, they are ideal for quantum teleportation.

Kosaka and her team attached a tiny wire along the diamond’s surface and created an oscillating magnetic field around it. A nitrogen nanomagnet was then used to anchor an electron, which was then entangled with a carbon nuclear spin. Once they were entangled, a photon holding quantum information was applied. The electron then absorbs the photon. The photon can then be transferred into the carbon and electron entanglement. Thus, teleportation of information at the quantum level was observed.

"Our ultimate goal is to realize scalable quantum repeaters for long-haul quantum communications and distributed quantum computers for large-scale quantum computation and metrology," Kosaka said.

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