This is today’s edition of The Download, our weekday newsletter that provides a daily dose of what’s going on in the world of technology. A $5 million prize awaits proof that quantum computers can solve health care problems  In a laboratory on the outskirts of Oxford, a quantum computer built from atoms and light awaits…

I’m standing in front of a quantum computer built out of atoms and light at the UK’s National Quantum Computing Centre on the outskirts of Oxford. On a laboratory table, a complex matrix of mirrors and lenses surrounds a Rubik’s Cube–size cell where 100 cesium atoms are suspended in grid formation by a carefully manipulated…