What benefits will the all-silicon quantum internet bring?

Quantum computing has enormous potential to provide far greater computing power than current supercomputers

Researchers from the Simon Fraser Universityin Canada, have made a crucial advance in the development of quantum technology.

Their research, published in the journal ‘Nature‘, describes his observations of more than 150,000 T-centered silicon photon-spin qubits, a major milestone that opens up immediate opportunities to build massively scalable quantum computers and the quantum internet that will connect them.

Quantum computing has enormous potential to provide computing power far beyond current supercomputers, which could enable advances in many other fields, such as chemistry, materials science, medicine and cybersecurity.

For this to become a reality, it is necessary to produce both stable, long-lived qubits that provide processing power, and the communication technology that allows these qubits to connect to each other at large ladder.

Previous research has indicated that silicon can produce some of the most stable and durable qubits in the industry. Now, research published by Daniel Higginbottom, Alex Kurkjian and their co-authors provides proof-of-principle that T-centers, a silicon-specific luminescent defect, can provide “photonic bonding” between qubits.

This work comes from the Silicon Quantum Technology Laboratory in the SFU Department of Physics, co-chaired by Stephanie Simmons, Canada Research Chair in Quantum Silicon Technologies, and Michael Thewalt, Professor Emeritus.

This work is the first measurement of isolated individual T centers, and makes it the first measurement of any individual spin in silicon to be made with optical measurements alone,” Stephanie Simmons said in a statement. which combines high-performance spin qubits and optical photon generation, it is ideal for creating scalable, distributed quantum computers, as they can handle processing and communications together, rather than having to interconnect two different quantum technologies, one for processing and one for communications,” he adds.

In addition, T-hubs have the advantage of emitting light at the same wavelength used by metropolitan communication equipment and current telecommunications networks.

With T-hubs, you can build quantum processors that inherently communicate with other processors, he says. When your silicon qubit can communicate by emitting photons (light) in the same band used in data centers and fiber networks, you get those same benefits to connect the millions of qubits needed for quantum computing. »

The development of quantum technology with silicon provides the opportunity to rapidly scale quantum computing. The global semiconductor industry is already capable of large-scale manufacturing of silicon computer chips at low cost and with an astonishing degree of precision. This technology is the backbone of modern computing and networking, from smartphones to the world’s most powerful supercomputers.

If a way is found to create silicon quantum computing processors, all the years of development, knowledge and infrastructure used to make conventional computers can be harnessed, rather than creating a whole new industry for quantum manufacturing, says -he. This represents an almost insurmountable competitive advantage in the international quantum computer race.”

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*This content is published with permission from Europa Press.

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