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  1. Fusion Physicists Found a Way Around a Long-Standing Density ...

    Jan 8, 2026 · For a long time, the Greenwald limit was accepted as a given and incorporated into fusion reactor engineering. The new work shows that precise control over how the plasma is …

  2. China’s fusion reactor smashed an ‘unbreakable’ limit and ...

    Reports on Experiment Finds Way to Break Fusion Plasma Density Limit describe how researchers explicitly set out to challenge the assumption that density has an unmovable …

  3. China's 'artificial sun' cracked a major code, setting a new ...

    3 days ago · Scientists in China working on the "artificial sun" have managed to break a long-standing "speed limit" in physics known as the Greenwald limit. The breakthrough on the …

  4. China fusion reactor breaks theoretical density limit

    6 days ago · NUCLEAR physicists have exceeded a long-standing theoretical density limit at an experimental fusion reactor in China, suggesting that future power plants could generate more …

  5. Tokamak experiments exceed plasma density limit, offering new ...

    Jan 1, 2026 · These experimental achievements provide new physical insights into breaking through the long-standing density limit in tokamak operation in pursuit of fusion ignition.

  6. China’s Fusion Reactor Broke Right Through an ‘Unbreakable’ Limit

    6 days ago · By exceeding a long-standing density barrier, China’s EAST fusion reactor proved that tokamaks can pack way more atoms into its plasma before destabilizing.

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  7. Fusion Physicists Discovered a Method Round a Lengthy ...

    Jan 8, 2026 · Experiments inside a fusion reactor in China have demonstrated a brand new strategy to circumvent one of many caps on the density of the superheated plasma swirling …