Hi everyone! I’m a KOSEN student building a DIY EFNMR Quantum Computer.

In this log, I want to take a quick break from our DIY hardware to share a personal story about the time I visited the National Museum of Emerging Science and Innovation (Miraikan) in Tokyo to see a real superconducting quantum computer chip on display.

My Trip to the Miraikan

"Under Maintenance!?"

Right after graduating from middle school, during my spring break, I had some free time. I had been wanting to see a real quantum computer chip for a long time, so I went to the Miraikan. The moment I arrived, I made a beeline for the quantum computer exhibit. However, right where the chip was supposed to be displayed, there was a sign that said, "Under Maintenance." I was honestly a bit heartbroken.

Despite that, the rest of the exhibits at the Miraikan were incredibly fascinating. Even without seeing the quantum chip, I ended up staying there all day, from opening until closing time! The highlight of that trip was the dome theater showing a movie called "The Man from the 9 Dimensions," which was an amazing visual exploration of Superstring Theory.

Finally Seeing the Chip!

Fast forward to this summer break: I went back to the Miraikan for my revenge (?). Just like last time, I headed straight for the quantum exhibit. And this time... the chip was actually there!

I was incredibly excited to finally see the superconducting quantum chip I had been dreaming about. My first impression upon seeing the real thing? It was much smaller than I expected! I had always imagined it would be around 5cm square, but it was actually only about 3cm square.

By the way, I watched "The Man from the 9 Dimensions" again on this trip! I went on a weekday afternoon in September, and it was surprisingly crowded (maybe because the museum is about to close for a 6-month renovation?). Seeing the real hardware up close gave me a huge boost of motivation to keep working on my own DIY quantum computer on my desk!

Follow Our Journey!

• Real-time updates on X (Twitter): https://x.com/nmrqcproject
• Detailed development logs and source code on GitHub: https://github.com/nmrqcproject/nmr-qc-project/blob/main/README.md
• Detailed development logs in Japanese / 日本語での詳しい開発記録 (Zenn): https://zenn.dev/nmrqcp