Physicist patents quantum computing enhancement method utilizing quantum processors with better superconductor materials and consistency

https://techxplore.com/news/2025-07-physicist-patents-quantum-method.html

"superconducting metals' surface/ interface imperfections disrupt quantum states increasing error rates... overcome by coating niobium metal superconductor surfaces with gold layer 10 or so atoms thick smoothing over surface defects in niobium... gold doesn't oxidize/ chemically react under most conditions... too thick kills superconductivity/ too thin and defects still dominate... epitaxial: growing crystalline gold layer over niobium surface... more stable, more repeatable, and ultimately, more scalable quantum processors"