Five questions to ask when someone presents a quantum solution
Five plain questions that help separate a promising quantum experiment from a product that is ready for everyday use.
Read the Quantum BriefQuantum Briefs
Quantum Briefs with clear answers about quantum technology
Each Quantum Brief begins with a question we hear outside specialist circles. We answer it in plain language, define unfamiliar terms, and link to the sources behind the explanation.
We publish a brief after its facts, sources, and wording have been reviewed.
The opening set
Three places to begin if quantum technology is new to you.
What quantum computers are good at, and what they are not ready for
What quantum computers are designed to do, why today's machines remain limited, and which claims deserve a closer look.
Read the Quantum Brief
Why some quantum computers need extreme cold
Why superconducting quantum computers need extreme cold, what the large refrigerator does, and why other machines work differently.
Read the Quantum BriefHow we prepare an article
Readers should be able to check the explanation.
- 01
Begin with a question that matters to readers outside the specialist community.
- 02
Use original research, government material, and other primary sources for factual claims.
- 03
Show when the article and its sources were last checked.
Quick answers
How Quantum Briefs are published
What are Quantum Briefs?
Quantum Briefs are sourced articles that explain a quantum subject or help readers examine a claim. They are written for people who do not already have specialist knowledge.
Who writes and reviews Quantum Briefs?
Each Quantum Brief is written and reviewed by people before publication. The public article shows the Quantum Insiders byline, its publication date, and the date it was last checked. Unapproved drafts are not included on the public site.
How are sources selected?
We begin with original research, government material, standards, and other primary sources. We may cite a company for facts about its own work, but we do not treat its marketing as independent evidence for the whole field.
Last checked 2026-07-21 through our editorial review process.