Does China’s Jiuzhang 4.0 computer herald the age of quantum supremacy? New programmable photonic quantum computing prototype completed a complex calculation in microseconds, developers say
First-ever mechanical qubit with a long lifespan created on shiny sapphire crystal: « This incredible mechanical qubit comes with 200 microseconds of coherence time, twice that of a superconducting qubit. »
Time ticks faster on the moon by 57 microseconds per Earth day
