<p>➀ Engineers at the University of Pennsylvania have successfully transmitted quantum data over commercial fiber-optic networks using the same Internet Protocol (IP) as today's internet; </p><p>➁ The key to this success is a 'Q-chip' that coordinates quantum and classical data streams; </p><p>➂ The experiment marks a significant milestone in the quest for a functional 'quantum internet' and could change how we process and transmit information.</p>