When it comes to developing quantum computers and harnessing quantum information, scientists require a complete understanding of the materials that make up superconducting qubits, or quantum bits, the core component of a quantum computer that holds information. Scientists at the U.S. Department of Energy’s Fermi National Accelerator Laboratory, along with collaborators such as Rigetti Computing and the National Institute of Standards and Technology, have used a new technique to identify impurities within physical qubits that can limit the lifespan of quantum information.
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