This is a pedagogical review on TT deformation of two dimensional quantum field theories. It
is based on three lectures which the author gave at ITP-CAS in December 2018. This review …

We develop a generic geometric formalism that incorporates both TT¯-like and root-TT¯-like
deformations in arbitrary dimensions. This framework applies to a wide family of stress …

A bstract We obtain microstates accounting for the Gibbons-Hawking entropy in dS 3, along
with a subleading logarithmic correction, from the solvable T\(\overline {T}\)+ Λ 2 deformation …

Quantum field theory in zero spatial dimensions has a rich infrared landscape and a
universal ultraviolet, inverting the usual Wilsonian paradigm. For holographic theories this …

We use the variational principle approach to derive the large $ N $ holographic dictionary for
two-dimensional $ T\bar T $-deformed CFTs, for both signs of the deformation parameter …

A bstract The\(T\overline {T}\) deformation of a conformal field theory has a dual description
as a cutoff AdS 3 spacetime, at least at the level of pure 3d gravity. We generalize this …

In this Letter, we introduce a one-parameter deformation of two-dimensional quantum field
theories generated by a nonanalytic operator that we call Root-TT¯. For a conformal field …

A bstract We revisit the complexity= action proposal for charged black holes. We investigate
the complexity for a dyonic black hole, and we find the surprising feature that the late-time …

We calculate the spectrum of a two dimensional CFT on a cylinder, perturbed by a general
linear combination of, and, by utilizing the relation of this problem to certain solvable single …

A bstract We investigate a new approach to holography in asymptotically AdS spacetimes, in
which time rather than space is the emergent dimension. By making a sufficiently large T 2 …