Making quantum computing useable
Training employees is one aspect of preparing the German economy for the future. The other is the practical application of the relevant technologies. This is where Dr. Christian Tutschku comes in. He heads up the Quantum Computing Team at Fraunhofer IAO. Since 2020, the institute has been jointly responsible, together with Fraunhofer IAF, for coordinating the “Competence Center for Quantum Computing” in Baden-Württemberg. “At the present time it is still, in some cases, totally unclear how we will be able to utilize quantum technology for wide-spread industrial applications in the near future,” he says. That’s why the experts at the competence center are currently working on identifying concrete application areas, which should show where the new silver bullet can fully develop its promised potential. “This involves the manufacturing industry, for example in terms of cutting patterns for sheet metal, but also things such as charging column infrastructure for electric cars or CFD simulations for flow and mixing processes,” Tutschku explains.
Qubits are the core of quantum computing. They function similarly to bits in classic computing. Their advantage is that while bits work with binary code — either a “zero” or a “one” — and thereby represent digital information as a series of ones and zeroes, qubits can be zero and one at the same time. This is what experts call a “super position”. Consequently: When scenarios are calculated, for example, multiple possibilities can be played out simultaneously and thus a lot more quickly. This offers huge advantages when analyzing and processing large amounts of data.
Quantum computers will probably become crucial one day but, “considering the current state of research, it’s not yet lucrative for companies themselves to research this,” says Tutschku. That is why it is the scientists, together with a large network of innovative companies, that are currently solving concrete application problems. The researchers now have access to the largest commercially utilizable quantum computer in Europe. This is in Quantum Village Ehningen near Stuttgart, Germany, and is run by US IT firm IBM. In the past, the competence center was also involved in helping IBM set up the quantum infrastructure.
“For us it is especially important that our solutions are widely applicable,” says Tutschku. “For example, if you compute the ideal driving route for a logistics firm’s fleet of vehicles, you can also apply this concept later elsewhere.” The specific fields of application differ from organization to organization, of course. “But the fundamental mathematical problem is often the same.” That’s why the researchers are making their results publicly accessible via open source.