Summary: These successful experiments are seen as a foundational building block in the development of a quantum internet — potentially a highly secure and far-reaching network of quantum computers and other quantum devices.
Original author and publication date: Department of Energy – February 20, 2020
Futurizonte Editor’s Note: We didn’t know about Arpanet (the precursor of Internet) until Internet was widely public. Now we know about the precursor of quantum Internet, but we don’t know what else is being developed.
From the article:
On Wednesday, February 19, 2020 at noon CST, U.S. Department of Energy (DOE) Under Secretary for Science Paul M. Dabbar announced scientists from Argonne National Laboratory and the University of Chicago entangled photons across a 52-mile “quantum loop” in the Chicago suburbs.
The quantum loop is a test bed designed to entangle quantum information at distance in real-world conditions.
The successful experiment, funded by DOE, is seen as a foundational building block in the development of a quantum internet — potentially a highly secure and far-reaching network of quantum computers and other quantum devices.
“This is an important step forward in harnessing entanglement and building a network to help form the basis of future quantum communication systems,” said Awschalom, the Liew Family Professor in the Pritzker School of Molecular Engineering at UChicago, senior scientist in the Materials Science Division at Argonne and director of the Chicago Quantum Exchange.
“We are excited by these initial demonstrations of distributing entanglement outside of a laboratory, as well as having a flexible communications platform that allows us to identify the challenges of translating quantum phenomena to the real world.”
In the subatomic quantum world, particles can become entangled, sharing their states even though they’re in different locations—a phenomenon which could be used to transfer information. The network, which originates at Argonne in Lemont, Ill. and winds circuitously in a pair of 26-mile loops through several of Chicago’s western suburbs, taps the unique properties of quantum mechanics to eventually “teleport” information virtually instantaneously across a distance. As a bonus, scientists believe the information would be extremely difficult to hack: Quantum states change when observed, so the presence of an outside listener would actually change the signal itself.