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# Shining a light on dark valleytronics: First direct observation of dark excitons in atomically thin materials

**[Phys.org](https://daily.dev/sources/phys)** · 5 min read · 0 upvotes · 0 comments

## Summary

Researchers at OIST achieved the first direct observation of dark excitons in atomically thin materials using advanced spectroscopy techniques. Dark excitons are quantum particles that don't emit light but can carry information for longer periods, making them promising for quantum computing applications. The study tracked how bright excitons transform into different types of dark excitons over time, revealing their potential for valleytronics - a technology that uses electron momentum states to encode information. This breakthrough opens new possibilities for more stable quantum information systems that require less extreme cooling.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://phys.org/news/2025-09-dark-valleytronics-excitons-atomically-thin.html>

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Tags: [#nanotechnology](https://daily.dev/tags/nanotechnology), [#quantum-computing](https://daily.dev/tags/quantum-computing), [#science](https://daily.dev/tags/science)

[View this post on daily.dev](https://daily.dev/posts/shining-a-light-on-dark-valleytronics-first-direct-observation-of-dark-excitons-in-atomically-thin--duee5ushh)

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