Perfect randomness realized for the first time
Editors have highlighted the following attributes while ensuring the content's credibility: fact-checked peer-reviewed publication trusted source proofread The GIST Add as preferred source A sheep image encrypted using ordinary randomness (center) and certified perfect randomness from the ETH experiment (right). Only perfect randomness turns the image entirely into noise. Credit: ETH Zurich Creating perfect randomness is surprisingly difficult.
- ▪Editors have highlighted the following attributes while ensuring the content's credibility: fact-checked peer-reviewed publication trusted source proofread The GIST Add as preferred source A sheep image encrypted using ordinary randomness (
- ▪Only perfect randomness turns the image entirely into noise.
- ▪Credit: ETH Zurich Creating perfect randomness is surprisingly difficult.
Phys.org files mainly under science. We currently carry 1,272 of its stories.
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Story provenance
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Record
| Original publisher | Phys.org |
| Canonical URL | https://phys.org/news/2026-05-randomness.html |
| Publication time | Wed, 27 May 2026 14:20:06 EDT |
| Retrieval time | 2026-05-27T18:23:02.498Z |
| Last seen | 2026-05-27T18:23:04.784Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | -2z8e2yNEy9X |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
Rights status (four layers)
WeSearch handling by dimension
| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
May 27, 2026 Perfect randomness realized for the first time by Oliver Morsch, ETH Zurich edited by Gaby Clark, reviewed by Robert Egan Gaby Clark Scientific Editor Meet our editorial team Behind our editorial process Robert Egan Associate Editor Meet our editorial team Behind our editorial process Editors' notes This article has been reviewed according to Science X's editorial process and policies. Editors have highlighted the following attributes while ensuring the content's credibility: fact-checked peer-reviewed publication trusted source proofread The GIST Add as preferred source A sheep image encrypted using ordinary randomness (center) and certified perfect randomness from the ETH experiment (right). Only perfect randomness turns the image entirely into noise.
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Excerpt limited to ~120 words for fair-use compliance. The full article is at Phys.org.