We study holographic entanglement entropy in dS/CFT and introduce timelike entanglement
entropy in CFTs. Both of them take complex values in general and are related with each …

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 define a new complex-valued measure of information called the timelike
entanglement entropy (EE) which in the boundary theory can be viewed as a Wick rotation …

We present a general framework in which both Krylov state and operator complexities can
be put on the same footing. In our formalism, the Krylov complexity is defined in terms of the …

A bstract In this paper, we introduce a new quantity called SVD entanglement entropy. This
is a generalization of entanglement entropy in that it depends on two different states, as in …

Abstract Following arXiv: 2210.12963 [hep-th], we investigate aspects of the time evolution
operator regarded as a density operator and associated entanglement-like structures in …

A bstract Using spread complexity and spread entropy, we study non-unitary quantum
dynamics. For non-hermitian Hamiltonians, we extend the bi-Lanczos construction for the …

We study the late-time behaviors of pseudo-(Rényi) entropy of locally excited states in
rational conformal field theories. To construct the transition matrix, we utilize two …

A bstract As a generalization of entanglement entropy, pseudo entropy is not always real.
The real-valued pseudo entropy has promising applications in holography and quantum …

A bstract Recently, it has been argued in [1] that Jackiw-Teitelboim (JT) gravity can be
naturally realized in the Karch-Randall braneworld in (2+ 1) dimensions. Using the …