De Sitter holography and entanglement entropy

X Dong, E Silverstein, G Torroba - Journal of High Energy Physics, 2018‏ - Springer
A bstract We propose a new example of entanglement knitting spacetime together, satisfying
a series of checks of the corresponding von Neumann and Renyi entropies. The conjectured …

Krylov complexity in Lifshitz-type scalar field theories

MJ Vasli, KB Velni, MRM Mozaffar, A Mollabashi… - The European Physical …, 2024‏ - Springer
We investigate various aspects of the Lanczos coefficients in a family of free Lifshitz scalar
theories, characterized by their integer dynamical exponent, at finite temperature. In this non …

Aspects of pseudoentropy in field theories

A Mollabashi, N Shiba, T Takayanagi, K Tamaoka… - Physical Review …, 2021‏ - APS
In this paper, we explore properties of pseudoentropy in quantum field theories and spin
systems from several approaches. pseudoentropy is a generalization of entanglement …

Some aspects of entanglement wedge cross-section

KB Velni, MR Mohammadi Mozaffar… - Journal of High Energy …, 2019‏ - Springer
A bstract We consider the minimal area of the entanglement wedge cross section (EWCS) in
Einstein gravity. In the context of holography, it is proposed that this quantity is dual to …

Pseudo-entropy in free quantum field theories

A Mollabashi, N Shiba, T Takayanagi, K Tamaoka… - Physical Review Letters, 2021‏ - APS
Pseudo-entropy is an interesting quantity with a simple gravity dual, which generalizes
entanglement entropy such that it depends on both an initial and a final state. Here we …

Systematically localizable operators for quantum simulations of quantum field theories

N Klco, MJ Savage - Physical Review A, 2020‏ - APS
Correlations and measures of entanglement in ground-state wave functions of relativistic
quantum field theories are spatially localized over length scales set by the mass of the field …

Reflected entropy and Markov gap in Lifshitz theories

C Berthiere, B Chen, H Chen - Journal of High Energy Physics, 2023‏ - Springer
A bstract We study the reflected entropy in (1+ 1)-dimensional Lifshitz field theory whose
groundstate is described by a quantum mechanical model. Starting from tripartite Lifshitz …

Partial-transpose-guided entanglement classes and minimum noise filtering in many-body Gaussian quantum systems

B Gao, N Klco - Physical Review A, 2024‏ - APS
The reduction and distortion of quantum correlations in the presence of classical noise leads
to varied levels of inefficiency in the availability of entanglement as a resource for quantum …

Entanglement spheres and a UV-IR connection in effective field theories

N Klco, MJ Savage - Physical Review Letters, 2021‏ - APS
We show that long-distance quantum correlations probe short-distance physics. Two disjoint
regions of the latticized, massless scalar field vacuum are numerically demonstrated to …

Massless Lifshitz field theory for arbitrary z

JK Basak, A Chakraborty, CS Chu… - Journal of High Energy …, 2024‏ - Springer
A bstract By using the notion of fractional derivatives, we introduce a class of massless
Lifshitz scalar field theory in (1+ 1)-dimension with an arbitrary anisotropy index z. The …