Preprint
Sep 2026
A gravitational realization of Courant--Hilbert deformations
Courant--Hilbert (CH) deformations unify broad classes of solvable stress-tensor flows including $T\bar{T}$ and root-$T\bar{T}$. However, a gravitational action that systematically yields such general deformations has remained unknown. In this Letter, we construct a two-dimensional massive gravity theory whose on-shell...
Osamu Fukushima, Miyabi Kurihara, Takaki Matsumoto et al.
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