Show HN: Play with real quantum physics in your browser

#1

Post by mattvr » Tue, Feb 04, 2025, 6:24 PM UTC

I wanted to make the simplest app to introduce myself and others to quantum computing.

Introducing, Schrödinger's Coin. Powered by a simple Hadamard gate[0] on IBM quantum, with this app you can directly interact with a quantum system to experience true randomness.

Thoughts? Could you see any use cases for yourself of this? Or, does it inspire any other ideas of yours? Curious what others on HN think!

[0] https://en.wikipedia.org/wiki/Quantum_logic_gate#Hadamard_ga...

Show HN: Play with real quantum physics in your browser
quantum.orgsoft.org

Re: Show HN: Play with real quantum physics in your browser

#2

Post by jwpapi » Fri, Feb 07, 2025, 2:37 PM UTC

A physical coin is biased?

Re: Show HN: Play with real quantum physics in your browser

#3

Post by isotropy » Fri, Feb 07, 2025, 2:46 PM UTC

jwpapi wrote: post #2

A physical coin is biased?

Empirically, human-flipped coins have about a 1% bias toward the same side they started on: https://www.ams.org/publicoutreach/math-history/hap7-fifty-o...

Re: Show HN: Play with real quantum physics in your browser

#4

Post by scottmsul » Fri, Feb 07, 2025, 2:59 PM UTC

I just see a bunch of spinning coins forever and nothing happens with no way to stop it...

Re: Show HN: Play with real quantum physics in your browser

#5

Post by ryan-duve » Fri, Feb 07, 2025, 3:01 PM UTC

When I click the coin I see an animation of 7-8 blurry coins spinning. Further clicking seems to have no effect. Is something else supposed to happen?

Re: Show HN: Play with real quantum physics in your browser

#6

Post by asparagui » Fri, Feb 07, 2025, 3:03 PM UTC

Cool idea! This is a really clever way to demo a real-world circuit!

Re: Show HN: Play with real quantum physics in your browser

#7

Post by l00sed » Fri, Feb 07, 2025, 3:03 PM UTC

scottmsul wrote: post #4

I just see a bunch of spinning coins forever and nothing happens with no way to stop it...

Same....

Re: Show HN: Play with real quantum physics in your browser

#8

Post by brap » Fri, Feb 07, 2025, 3:13 PM UTC

Is this truly live or did they batch random numbers ahead of time?

Re: Show HN: Play with real quantum physics in your browser

#9

Post by sinan » Fri, Feb 07, 2025, 3:14 PM UTC

ryan-duve wrote: post #5

When I click the coin I see an animation of 7-8 blurry coins spinning. Further clicking seems to have no effect. Is something else supposed to happen?

Technical Details section of help says: "In some cases, you may have to wait multiple minutes for a result."

Re: Show HN: Play with real quantum physics in your browser

#10

Post by Rooster61 » Fri, Feb 07, 2025, 3:15 PM UTC

Considering this states its talking to an actual quantum computer somewhere(at least that's what I'm led to believe by the "Connected to " in the bottom right), I'd imagine this has gotten hugged to death, and hence why we are only seeing the spinning coins rather than it actually resolving.