$T\bar{T}$-like Flows of Yang-Mills Theories

We study $T\bar{T}$-like deformations of $d>2$ Yang-Mills theories. The standard $T\bar{T}$ flows lead to multi-trace Lagrangians, and the non-Abelian gauge structures make it challenging to find Lagrangians in a closed form. However, within the geometric approach to $T\bar{T}$, we obtain the closed-form solution to the metric flow and stress-energy tensor, and show that instanton solutions are undeformed. We also introduce new symmetrised single-trace $T\bar{T}$-like deformations, whose solutions in $d=4$ include the non-Abelian Born-Infeld Lagrangian proposed by Tseytlin in 1997.