Quadratic gravity: half-century-old theory re-emerges in quantum gravity

A quadratic gravity theory proposed nearly fifty years ago resurfaced in current quantum gravity research.

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The fact

This mathematical approach, long abandoned, offers new perspectives for reconciling general relativity and quantum mechanics.

Its developments could lead to the first experimental tests of these theoretical models.

17 sources — click a link to read an article on the topic:

RFI

MIT Technology Review

Le Figaro

Grist

The Guardian Environment

Ars Technica

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Auto-synthesis from 17 media sources · identified on April 14, 2026

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