In a proposal that reads extra just like the script to a brand new sci-fi film, researchers are suggesting a novel method to deal with one of many core issues of quantum computing. If deployed, it will redefine how we consider “cloud computing.”
With each Amazon and Microsoft asserting the discharge of quantum chips this yr, the concept of computer systems that depend on subatomic particles often called qubits is steadily inching nearer to actuality. Qubits are particles that benefit from the idea often called superposition, which means that in contrast to common bits in our present computer systems, they cannot solely have a state of zero or one – however each on the identical time. This capability to carry two states without delay signifies that quantum computer systems ought to at some point be capable to excel at fixing extremely complicated scientific puzzles at speeds by no means thought doable.
There’s one massive challenge with quantum computer systems although: most qubits must be saved at ultracold temperatures simply above absolute zero with a view to perform appropriately. So constructing these machines at scale would require a big vitality expenditure to maintain them cool.
A brand new proposal from researchers at Saudi Arabia’s King Abdullah College of Science and Know-how (KAUST) sidesteps this challenge with a novel strategy.
Writing within the journal npj Wireless Technology, the trio proposes utilizing airships, additionally generally often called blimps, to carry quantum computer systems to the stratosphere. There, at an altitude of about 20 km (12.4 miles), temperatures are within the -50 °C vary (about -58 °F) and could be chilly sufficient to permit the qubits to perform appropriately. They name these methods Quantum Computing-Enabled Excessive Altitude Platforms (QC-HAPs), and suggest that they’d be outfitted not solely with the quantum computer systems, however with photo voltaic panels and lithium-sulfur batteries as nicely.
As a result of the HAPs would float far above clouds and doubtlessly disruptive climate methods, they might function and cost their batteries utilizing photo voltaic vitality in the course of the day, and change to the batteries for nighttime performance.
When it comes to accessing the floating computer systems, the group proposes beaming knowledge by means of the environment to base stations utilizing mild waves, by means of a course of often called free-space optical communication. This echoes a course of examined earlier this yr during which the world’s longest quantum communications link used photons for knowledge transmission and encryption.
For cloudy days, they recommend equipping the blimps with radio-frequency transmission and, to scale back sign degradation, the group says that balloon-supported platforms at decrease altitudes might be used as relay stations.
The researchers say their proposal may save 21% in vitality prices for a quantum laptop counting on ion lure qubits, individually charged atoms held in place by electromagnetic fields and managed by lasers. Moreover, they are saying that the person airships may transfer across the globe as wanted and might be linked collectively to extend computing energy. This may create “a dynamic fleet able to delivering on-demand, scalable quantum computation companies worldwide”, in line with Wiem Abderrahim, one of many three authors on the examine.
The group acknowledges that its idea continues to be a great distance from a real-world rollout, with important advances in quantum computing {hardware} wanted as a primary step. Nevertheless, the scientists plan to proceed exploring the trail on which this examine positioned them.
“Our subsequent steps are to maneuver from the conceptual and analytic stage towards extra implementation-focused research,” concludes Osama Amin, a analysis scientist within the group.
Supply: KAUST
