An aside, for the curious

Inside the machine.

The thing on the poster is a dilution refrigerator. Almost none of it is the computer. Scroll, and it will take itself apart for you — down through every cold stage to the chip at the bottom, and then into the single qubit that chip actually holds.

Takes about a minute · Drag to turn it · Everything is real geometry and real gate maths

Registration is open

Come and build one.

That was the machine

Now come and program one.

Four days, 10 – 13 October 2026 at IISER Kolkata. Lectures, hands-on labs, a challenge and a panel — and everything you just scrolled through, explained properly.

Participation is free for IISER Kolkata students. External participants pay a ₹200 registration fee. Optional hostel accommodation for external participants costs ₹200 per day, separately from registration.