Harvard Births First Ever ‘Hacker-proof’ Quantum Computer

Harvard researchers demonstrated the globe’s widest fiber distance between two quantum memory nodes in existing Boston-area telecommunication fiber and claimed it is hacker-proof.

It is a basic, closed internet that transmits a signal encapsulated by safe tiny particles rather than conventional bits, as is the case with the current internet.

Mikhail Lukin, Joshua, and Beth Friedman University professors from the physics department spearheaded the groundbreaking work released in Nature. Key contributors from the Harvard Quantum Initiative, which collaborates with Harvard professors, are Marko Loncar and Hongun Park.

Harvard Top Work Practices on Quantum

The Harvard group successfully initiated the first working prototype of the nuclear internet by connecting two quantum memory nodes. This comes in division with the optical fiber link launched on a 22-mile loop within Cambridge, Somerville, Watertown, and Boston.

Quantum memory makes it possible to store and retrieve information, perform intricate network operations, and support sophisticated network architectures.

However, this is comparable to conventional memory in computers. Although there have been previous attempts to establish quantum networks, the network launch by the Harvard team is the longest fibre network design to transport, analyse, and store data.

A silicon-vacancy centre, a flaw in the atomic framework of a diamond, is what makes up each node, which is a tiny quantum computer. The silica vacancy center and light interact more effectively inside the diamond. Due to the sculpted features, they are less than one-hundredth of an average human hair’s width.

Harvard has been conducting research on the use of silicon-vacancy centres as quantum memory devices for small photons for a number of years. The method addresses a significant issue with the theoretical quantum web in which transmission loss is not adjustable by conventional means.

In a quantum network, standard optical-fiber signal repeaters are not applicable since quantum information cannot be in duplicate separate bits. Because of this, the data is secure but very challenging to send across large distances.

Network servers built on silicon vacancy centers may dynamically collect, store, and transmit bits of quantum information while mitigating signal loss. Due to the atomic structure of the silicon-vacancy center, light passing through the first node is bound with it, allowing it to transport the information. This occurs when all the nodes get down to almost absolute zero.