Quantum teleportation is very real. Indeed, researchers have already teleported quantum information in cities and even into space. Although this sounds like a deadly plotter, in the near future quantum teleportation has many powerful applications, mainly in the emergence of quantum technologies.
Recently researchers from something very cool with quantum information. The team at the Yokohama National University has been able to protect body information with quantum information in one of the world's toughest structures – the diamond. Breakthroughs can help us better share and store confidential information.
Short look and quantum teleportation
Let's look at the brief quantum teleportation. For uninitiated quantum teleportation is a process in which quantum information can be transmitted from one place to another through classical communication and a pre-shared quantum connection between the sending and receiving locations. So what exactly does that mean?
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In short, quantum teleportation is not included in the science-fictional sense of teleportation, so do not excite yourself. Quantum teleportation involves taking information from one place and recreating it in another, thanks to quantum phenomena, quantum entanglement. Using this principle, the researchers have done something completely new with quantum information.
According to Hideo Kosaka, professor of engineering at the Yokohama National University and author of the study, "Quantum teleportation allows the transfer of quantum information to otherwise inaccessible space, it also allows the transfer of information into quantum memory without revealing or destroying the quantum information stored."
The diamond is forever
In a study published in the Journal of Communications Physics, Japanese researchers have manipulated an electron and a carbon dioxide isotope in a diamond defect known to the scientific community as a center of nitrogen vacation.
To make this possible, the researchers constructed an oscillating magnetic field around the diamond, then used microwave and radio waves to confuse the electron and the carbon atom's nucleus.
When the elements become entangled, the effect on one particle affects the other. Imagine an electron on the mass side and the carbon atom at the other end of the table. Then the researchers manipulated the electron, which absorbed a photon holding a quantum information.
The state of photon polarization is transferred to the carbon, which means the team is able to transfer quantum information.
"Our ultimate goal is to realize scalable quantum repeaters for quantum communications over long distances and distributed quantum computers for large-scale quantum computing and metrology," said Kosaka.