Show HN: Play with real quantum physics in your browser

Post by inurqubits » Fri, Feb 07, 2025, 4:40 PM UTC

__MatrixMan__ wrote: post #14

I've wondered for a long time what the user experience for quantum computing will look like. I had imagined some library with a type for "qbit" and an dsl for making them interact in certain ways and then some kind of async thing where your classical code could run locally while periodically shuttling data to and from wherever the quantum computer is. This isn't quite that but I guess it's a first step.

    import numpy as np
    from qiskit import QuantumCircuit

    # 1. A quantum circuit for preparing the quantum state |000> + i |111> / √2
    qc = QuantumCircuit(3)
    # generate superposition
    qc.h(0)  
    # add quantum phase   
    qc.p(np.pi / 2, 0)  
    # 0th-qubit-Controlled-NOT gate on 1st qubit
    qc.cx(0, 1)   
    # 0th-qubit-Controlled-NOT gate on 2nd qubit 
    qc.cx(0, 2)

Post by inurqubits » Fri, Feb 07, 2025, 4:43 PM UTC

Post by satirev » Fri, Feb 07, 2025, 4:44 PM UTC

mattvr wrote: post #23

Hey HN! Creator here. Sorry for the downtime and dizzying spinning coins. I was surprised to see this on the frontpage this morning and the scale is pushing the limits of our quantum randomness generator It should be working again now as I'm pushing fixes. Thanks for your patience.

Post by HelloUsername » Fri, Feb 07, 2025, 4:46 PM UTC

isotropy wrote: post #3

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...

Post by helboi4 » Fri, Feb 07, 2025, 4:53 PM UTC

jwpapi wrote: post #2

A physical coin is biased?