Rahul Gupta

Two pendulums linked by a spring of light begin to swing in unison without ever touching. In the quantum world, such synchronization means something more: particles lose their individuality and become a single object.

In a dark room, a tiny diamond glows red when a green laser hits it. This glow isn't just for show: it's a signal: its brightness changes when a magnetic field is nearby. Inside the diamond sit defects — nitrogen atoms with an empty neighboring site. They act like sensitive needles that rotate under the influence of a magnet.