What this site is for
Quantum computing is badly served by the writing around it. Press coverage swings between “this breaks all encryption tomorrow” and “it is a lab curiosity”, while the primary sources are papers written for people who already have the background. QuantumExplainer.com sits in the gap: explanations that are accurate enough to be useful and plain enough to read without a physics degree.
Every article opens with the short answer. If that is all you needed, you can leave after two paragraphs and we will count that as the article having worked.
Who runs it
QuantumExplainer.com is an independent site run by a single editor in Poland. It is not backed by a quantum computing company, a university or an investor, and it does not take payment for coverage. The legal publisher details are on the imprint page, and the fastest way to reach a person is the contact page.
Being one person rather than a newsroom sets the boundaries of what this site can be. It can explain established physics and read company roadmaps carefully. It cannot break news, and it does not pretend to.
What we cover
The library is organised into ten topic hubs, each opening with the fundamentals and working up to the open problems:
- Quantum Computing Basics — qubits, superposition, entanglement, and how a quantum computer really differs from a classical one.
- Quantum Algorithms — Shor, Grover, QAOA, VQE and where the promised speedups come from.
- Quantum Hardware & Qubits — superconducting circuits, trapped ions, photonics, silicon spins, neutral atoms.
- Quantum Error Correction — surface codes, stabilizers, fault tolerance, error mitigation.
- Quantum Cryptography & Security — QKD, BB84, post-quantum cryptography, “store now, decrypt later”.
- Quantum Machine Learning — quantum neural networks, kernels, variational classifiers.
- Quantum Information Theory — entropy, channel capacity, teleportation, complexity classes.
- Quantum Physics & Simulation — simulating molecules and materials, plus the underlying physics.
- Quantum Computing Applications — drug discovery, finance, logistics, sensing, the quantum internet.
- Quantum Industry & Careers — company roadmaps, hardware costs, degrees and jobs.
How articles are written
Articles are researched from public sources — published papers, vendor documentation and company roadmaps — and drafted with the help of AI writing tools before being reviewed, checked against the sources and edited by a person. We say that plainly rather than burying it, because a reader deserves to know how the thing they are reading came about.
Where a claim depends on a specific result or a vendor announcement, we say so in the text rather than presenting it as settled fact. Quantum computing moves quickly, and parts of it are genuinely contested. Where the field has not settled, we try to say that instead of picking whichever answer makes a better headline.
The full process, including how corrections are handled, is set out in the editorial policy.
What you will not find here
- Investment advice. Articles about quantum computing companies and their share prices are explanatory. They are not recommendations, and nothing here should be read as one.
- Professional or medical advice. Articles about quantum effects in biology or medicine describe research. They are not guidance for any decision about your health.
- Paid coverage. No company has ever paid to appear here, and none will.
- Quantum mysticism. Where a popular claim is not supported by physics, the article says so. That is the point of the site.
Corrections
If something here is wrong, we want to fix it. Send the article URL and what is incorrect through the contact page and we will correct the page or explain why we read the source differently. Substantive corrections are noted on the article itself rather than quietly edited away.
Independence and advertising
This site is supported by advertising. Adverts are selected by the advertising network, not by us; advertisers have no say in what we cover or what we conclude, they do not see articles before publication, and no advertiser has ever been given a right of reply that a reader would not also get. Every article carries an advertising disclosure near the top rather than in the footer.
If you would rather read without the tracking that personalised advertising involves, you can refuse it in the consent banner or change your mind at any time with the “Manage consent” button at the bottom of every page, and the site keeps working. The privacy policy explains what each choice means.
Staying in touch
The newsletter sends one email a week at most, only when there is something worth sending, and requires you to confirm the address before anything else arrives. There is no other mailing list, and there is no app.