Scientists must solve a number of challenging issues before quantum networks and computers can realise their enormous potential, but a recent study suggests a potential solution to one of these issues.
Recent studies have shown that silicon, the material that our
current classical computing components are made of, has the potential to store
quantum bits as well.
These quantum bits, also known as qubits, exist in a variety
of forms and are essential for next-generation quantum computing performance.
One sort of qubit that scientists have been able to develop
through time is silicon, but there is also the issue of connecting them at
scale. According to the new research, certain silicon flaws called T centres
can function as photonic (or light-based) links between qubits.
According to Canadian quantum physicist Stephanie Simmons of
Simon Fraser University, an emitter like the T centre that combines
high-performance spin qubits and optical photon generation is perfect for
creating scalable, distributed quantum computers.
Instead of requiring the interface of two different quantum
technologies, one for processing and one for communications, they can handle
both tasks simultaneously.
In other words, it's a more effective system that could also
be simpler to construct. According to the researchers, this type of quantum
particle activity has never before been seen optically in silicon, adding to
the evidence that it's a workable solution.
Another advantage is that T centres emit light at the same
wavelength as current networks for fibre optic communications and telecom
equipment. This would simplify the deployment of quantum internet technology.
According to Simmons, "T centres allow you to construct
quantum processors that naturally connect with other processors."
"You get these same benefits for connecting the millions
of qubits needed for quantum computing when your silicon qubit can communicate
by emitting photons (light) in the same band used in data centres and fibre
networks."
Using specialised microscopy techniques, the researchers
created tens of thousands of tiny "micropucks" on silicon wafers and
verified that each of these tiny components contained a small number of T
centres that could be individually addressed and controlled.
Even though there is still much to be done, including the
need to improve qubits' accuracy and dependability so they can be used to their
full potential, this research brings the possibility of quantum computing one
step closer.
If that future can be built on silicon, then a smoother
transition to large-scale quantum computing is possible because we already have
years of manufacturing experience and equipment at our disposal.
As stated by Simmons, "instead of creating a whole new
industry for quantum manufacturing, you can take advantage of all of the years
of development, knowledge, and infrastructure used to manufacture conventional
computers."
The study was released in the journal Nature.
No comments