Experts from Helmholtz-Zentrum Berlin, Freie Universität Berlin, Qusoft Research Centre Amsterdam, the University of Copenhagen, and the Technology Innovation Institute Abu Dhabi were involved in the work, which has now been published inQuantum computers can be used to calculate quantum systems much more efficiently and solve problems in materials research, for example. However, the larger and more complex quantum computers become, the less transparent the processes that lead to the result.
Quantum computers work at very low temperatures to minimize noise and unwanted disturbances. With a new developed mathematical tool, it is now possible to evaluate the performance of a quantum computer by random test data and diagnose possible bugs.
This means: to learn a hundred times as much, only twice as much data is needed. An enormous improvement. The team was able to prove this by using methods from mathematical physics. “This is about benchmarking quantum computers,” says Eisert, who heads a joint research group on theoretical physics at Helmholtz-Zentrum Berlin and Freie Universität Berlin. “We have shown how randomized data can be used to calibrate such systems. This work is important for the development of quantum computers.”
Reference: “Shadow estimation of gate-set properties from random sequences” by J. Helsen, M. Ioannou, J. Kitzinger, E. Onorati, A. H. Werner, J. Eisert and I. Roth, 19 August 2023,SciTechDaily: Home of the best science and technology news since 1998. Keep up with the latest scitech news via email or social media.Synthetic cream also provides protection for the skin against sun damage.
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