Scaling up quantum systems is essential for advancing quantum computing, as their benefits become more apparent with larger systems. Researchers at TU Darmstadt have made significant progress in achieving this goal. The results of their research have now been published in the prestigious journal Optica.
Quantum processors based on two-dimensional arrays of optical tweezers, which are created using focussed laser beams, are one of the most promising technologies for developing quantum computing and simulation that will enable highly beneficial applications in the future. A diverse range of applications from drug development through to optimizing traffic flows will benefit from this technology.
These processors have been able to hold several hundred single-atom quantum systems up to now, whereby each atom represents one quantum bit or qubit as the basic unit of quantum information. In order to make further advances, it is necessary to increase the number of qubits in the processors. This has now been achieved by a team headed by Professor Gerhard Birkl from the “Atoms – Photons – Quanta” research group in the Department of Physics at TU Darmstadt.
In a research article, which was first published at the beginning of October 2023 on the arXiv preprint server and has now also been published following scientific peer review in the prestigious journal Optica, the team reports on the world’s first successful experiment to realize a quantum-processing architecture that contains more than 1,000 atomic qubits in one single plane.
“We are extremely pleased that we were the first to break the mark of 1,000 individually controllable atomic qubits because so many other outstanding competitors are hot on our heels,” says Birkl about their results.
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