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The defect-free assembly of 2-D clusters with over 100 single-atom quantum systems
Researchers at Technische Universität Darmstadt have recently demonstrated the defect-free assembly of versatile target patterns of up to 111 single-atom quantum systems. Their findings, outlined in a paper published in Physical Review Letters, could drive assembled-atom architectures beyond the threshold of quantum advantage, paving the way for new breakthroughs in quantum science and technology.
"Our research is driven by the observation that physical sciences are right in the middle of a paradigm shift in which the application of quantum physics, i.e. quantum technologies, are becoming the leading technologies in the near future," Gerhard Birkl, one of the researchers who carried out the study, told Phys.org. "A vast list of applications are already foreseeable but I am convinced that of most applications we are not even aware of."
The next step for the field of quantum science and technology is the development of experimental platforms that offer extensive scalability, multisite quantum correlations and efficient quantum error correction. Over the past century or so, researchers have carried out a substantial amount of work on single quantum systems, laying the foundations for current developments. Atomic quantum systems have played a key role in these studies, particularly neutral atoms trapped by light, as they provide well-isolated quantum systems with favorable scaling.
"For the upcoming generations of quantum technologies, going to multiple quantum systems, i.e. scaling up the system size is pivotal," Birkl said. "For that reason we gave ourselves the directive to develop a novel platform that provides highly scalable architectures for atomic quantum systems with full control of all relevant parameters for advancing state-of-the art quantum technologies."
[...] "The scalability of the physical systems used is pivotal to further progress in this field," Birkl said. "We were able to significantly increase the pattern size and the success probability of systems based on neutral atoms. No related experiment has demonstrated more than 72 qubits before, needless to say more than 100, or even 111. Our platform has the explicit prospect of being scalable even far beyond that numbers."
Quantum supremacy typically requires over 50 qubits, yet so far only a few quantum technology experiments were able to surpass this threshold. In their experiment, the researchers reached a total of 111 qubits with a clear plan of how to further exceed this number. This is evidence of the scalability of their experimental platform.
[...] The study carried out by Birkl and his team could have important implications for several subfields of quantum technology research, including quantum simulation and quantum computing. The researchers are now planning to scale up their platform to 1000 quantum systems, also adding the ability to initiate two-qubit quantum gates between atoms to build a 2-D quantum processor based on Rydberg interactions. In this way, they are also hoping to implement large-scale quantum computing and quantum simulations using their experimental platform.
(Score: 2) by c0lo on Sunday June 02 2019, @08:46AM
I foresee lots of German students benefiting from high quality free tertiary education with the money IBM is gonna pay for the patents.
https://www.youtube.com/@ProfSteveKeen https://soylentnews.org/~MichaelDavidCrawford
(Score: 3, Insightful) by Rupert Pupnick on Sunday June 02 2019, @12:20PM
So these guys are now talking about “scalability” (very popular word in the Tech Bro Lexicon) as if to suggest that most of the fundamental issues are under control, and they can start building stuff out. Also, a vast list of applications are out there, many of which we aren’t even aware of? Really? Smells like you-know-what.