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 …

A bstract We study the entanglement islands and subsystem volume complexity
corresponding to the left/right entanglement of a conformal defect in d-dimensions in …

In this paper, we compare the saturation timescales for complexity, linear entropy, and
entanglement negativity for two open quantum systems. Our first model is a coupled …

A bstract We study the spectral properties of two classes of random matrix models: non-
Gaussian RMT with quartic and sextic potentials, and RMT with Gaussian noise. We …

Scar eigenstates in a many-body system refers to a small subset of non-thermal finite energy
density eigenstates embedded into an otherwise thermal spectrum. This novel non-thermal …

A bstract In this work, we investigate the time evolution of the pseudo-(Rényi) entropy after
local primary operator quenches in 2D CFTs with\(T\overline {T}/J\overline {T}\)-deformation …

We probe the contraction from 2 d relativistic CFTs to theories with Bondi-Metzner-Sachs
(BMS) symmetries, or equivalently conformal Carroll symmetries, using diagnostics of …

The harmonic oscillator is the paragon of physical models; conceptually and computationally
simple, yet rich enough to teach us about physics on scales that span classical mechanics to …

A bstract The\(T\overline {T}\) deformation of a 2 dimensional field theory living on a curved
space-time is equivalent to coupling the undeformed field theory to 2 dimensional 'ghost …

A bstract Holographic entanglement entropy was recently recast in terms of Riemannian
flows or 'bit threads'. We consider the Lorentzian analog to reformulate the 'complexity …