Quantum logic gates for a single qubit, interactively
Drag and drop quantum gates to see how they act on a qubit.
Quantum logic gates for a single qubit, interactively launched on April 9, 2021 with 6 votes, #1,456 of 3,754 launches that month and more than 50% of that year's launches. The site was still online in September 2026, 5 years on.
What it does
Quantum computers use quantum physics to perform computation. They use phenomena such as superposition and entanglement that make it possible to use more powerful algorithms than in classical computing (Nielsen and Chuang 2000 ) . In classical computing, we use the electric signal as the carrier of information. In quantum, we use various implementations, including the polarization of light, the spin of ions, and the states of superconductors. In classical computing, the basic unit is a bit - 0 or 1. In quantum computing, the basic unit is a qubit. Instead of just two values, we have a vector with two components. In this article, we explore what a single qubit is, and what are the quantum…from quantumflytrap.com
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Qoord, a simple quantum circuit simulator2024 · github.com · ▲23Hi! I built this to teach myself how a quantum circuit simulator works. It's about 1000 lines of Python, aiming to be understandable more than being fast or robust. It's not meant to compete with anything else - just a personal project to really get clear on the under-the-hood theory of qubits and quantum gates.
1-qubit quantum circuit simulator with interactive bloch sphere2024 · dazkins.com · ▲7This has been a small labour of love for a few days. Just a fun idea I had to create a single qubit quantum circuit simulator with interactive 3D bloch sphere. Check out my blog post linked on the page for further introduction to quantum computing!
Play with real quantum physics in your browser2025 · quantum.orgsoft.org · ▲156I 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...
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