From – Futurism.com
A Quantum Record
Not long ago, in the early 1990s, scientists only speculated that teleportation using quantum physics could be possible. Since then, the process has become a standard operation in quantum optics labs around the world. In fact, just last year, two separate teams conducted the world’s first quantum teleportation outside of a laboratory.
Now, researchers in China have taken the process a few steps further: they successfully teleported a photon from Earth to a satellite orbiting more than 500 km (311 mi) away.
The satellite, called Micius, is a highly sensitive photo receiver capable of detecting the quantum states of single photons fired from the ground. Micius was launched to allow scientists to test various technological building blocks for quantum feats including entanglement, cryptography, and teleportation.
This teleportation feat was announced as one of the first results of these experiments. Not only did the team teleport the first object ever from the ground to orbit, they also created the first satellite-to-ground quantum network, smashing the record for the longest distance for which entanglement has been measured.
“Long-distance teleportation has been recognized as a fundamental element in protocols such as large-scale quantum networks and distributed quantum computation,” says the Chinese team to MIT Technology Review. “Previous teleportation experiments between distant locations were limited to a distance on the order of 100 kilometers, due to photon loss in optical fibers or terrestrial free-space channels.”
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