For a field theory with a gravitational dual, following Susskind's proposal we define
holographic complexity for a subsystem. The holographic complexity is proportional to the …

A bstract In quantum information theory, Fisher Information is a natural metric on the space
of perturbations to a density matrix, defined by calculating the relative entropy with the …

A bstract We study the evolution of holographic complexity in various AdS/CFT models
containing cosmological crunch singularities. We find that a notion of complexity measured …

Holographic superconductor is an important arena for holography, as it allows concrete
calculations to further understand the dictionary between bulk physics and boundary …

For a field theory with a gravitational dual, we study holographic fidelity susceptibility for two
states related by a deformation of a relevant operator. To do so, we study the backreaction of …

We calculate entanglement and impurity entropies in a recent holographic model of a
magnetic impurity interacting with a strongly coupled system. There is an RG flow to an IR …

The surface/state correspondence suggests that the bulk codimensional two surface could
be dual to the quantum state in the holographic conformal field theory (CFT). Inspired by the …

A bstract AdS black holes with hyperbolic horizons provide strong-coupling descriptions of
thermal CFT states on hyperboloids. The low-temperature limit of these systems is peculiar …

We consider the quantum information metric of a family of CFTs perturbed by an exactly
marginal operator, which has the dual description of the Euclidean Janus geometries. We …

We construct a time-dependent expression of the computational complexity of a quantum
system, which consists of two conformal complex scalar field theories in d dimensions …