Counterintuitive breakthrough: poorly fabricated Josephson junctions generate cryptographic-grade random numbers at millikelvin temperatures, achieving 99.8% Shannon entropy and passing all NIST tests. Eliminates need for tight device screening.

Counterintuitive breakthrough: poorly fabricated Josephson junctions generate cryptographic-grade random numbers at millikelvin temperatures, achieving 99.8% Shannon entropy and passing all NIST tests. Eliminates need for tight device screening.