# Theory for the Power Threshold of the $L\text{−}H$ Transition in Tokamaks

Source: [feeds.aps.org](http://link.aps.org/doi/10.1103/rw25-wy15) · 2026-11-13 · Physics
Page: https://themorning.science/story/theory-for-the-power-threshold-of-the-l-text-h-transition-in-tokamaks-85f5a583db884c77
Kind: research · Impact: medium

## In brief

- Flux-driven two-fluid simulations of a diverted tokamak show a confinement transition when a critical heating threshold is exceeded.
- The simulated transition is presented as resembling the experimentally observed L-H transition.
- The work provides a theoretical account of the power threshold for the L-H transition in tokamaks.

## Why it matters

The power needed to trigger the L-H transition sets the heating requirements for tokamak fusion devices, so a theory for this threshold helps plan future reactors and experiments.

## Timeline

- 2026-11-13: Theory for the power threshold of the L-H transition in tokamaks published (feeds.aps.org)

## Coverage

- [Theory for the Power Threshold of the $L\text{−}H$ Transition in Tokamaks](http://link.aps.org/doi/10.1103/rw25-wy15) — feeds.aps.org, 2026-11-13

Tags: tokamak, fusion, plasma physics, l-h transition, confinement

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Brief generated by AI (claude-haiku-5-5) from the reporting listed under Coverage. Headlines belong to their publishers. The Morning Science – https://themorning.science