Qubit Zoo
The Qubit Zoo is home to the qubits you qnow and love — and some you don’t yet. Every qubit modality, architecture, and gate primitive we could find, organized as a living Zettelkasten with real physics: Hamiltonians, performance metrics, and links to the papers that started it all.
The qubit zoo is for hardcore qubit geeks and (hopefully) motivates further development of new and better qubits and associated quantum gates, some of which may be inspired by old ideas.
In case you didn’t qnow* (the q is silent), qubits are needed for quantum computers.
Explore by Technology Family
| Family | Entries | Description |
|---|---|---|
| 🔵 Superconducting | 16 | Transmon, fluxonium, flux qubit, and more |
| 🟢 Semiconducting | 10 | Spin qubits, quantum dots, hole-spin |
| 🟡 Ion Trap | 4 | Trapped ions, shuttling architectures |
| 🟠 Neutral Atom | 3 | Rydberg atoms, optical tweezers |
| 🔴 Photonic | 3 | Linear optical, dual-rail, cluster-state |
| 🟣 Topological | 4 | Majorana, surface codes, color codes |
| ⚡ Super-Semi | 3 | Superconducting-semiconducting hybrids |
Featured Quanimals
- transmon — The workhorse of superconducting quantum computing
- fluxonium — Ultra-high coherence with large inductance
- spin-qubit — Silicon-based quantum dots for scalable processors
- trapped-ion-qubit — Record gate fidelities with atomic ions
Interactive Tools
- 🧬 Qubit Genealogy — Interactive family tree of qubit evolution.
- 🏁 The Qubit Race — Cross-modality gate fidelity chart. (Coming soon)
Why a Qubit Zoo?
Qubits improve based on knowledge gained from previous qubit proposals and realizations. As we better understand what limits performance — decoherence mechanisms, material parameters, control overhead — we can sometimes use that knowledge to radically advance the state of the art. Many ideas from the early days of quantum computing, since forgotten, may be applicable again now that we have working qubits.
Developments can also be applied across technologies. It pays to understand qubits in all their forms when designing new ones. Hybrid qubits are possible too.
How This Works
This site is automatically generated from a curated Obsidian vault. A daily pipeline discovers new papers from arXiv, extracts structured knowledge, and adds entries — all verified before publication.
- Editorial Policy — What belongs in the Zoo
- Use the graph view (right sidebar) to explore connections between entries
- Use search (top left) to find specific qubits, concepts, or papers
- Backlinks show you what references each entry
Why isn’t qubit X in the Zoo? Because you haven’t submitted it yet.
The Qubit Zoo is maintained by Scibok — an AI-assisted scientific knowledge engine, built by a hardcore qubit geek.