Entanglement and geometry from subalgebras of the Virasoro algebra

P Caputa, D Ge - Journal of High Energy Physics, 2023 - Springer
A bstract In this work we study families of generalised coherent states constructed from SL
(2, R) subalgebras of the Virasoro algebra in two-dimensional conformal field theories. We …

Phase diagram of the quantum spin- Heisenberg- model on a frustrated zigzag chain

H Saito, C Hotta - Physical Review B, 2024 - APS
We investigate the quantum spin-1/2 zigzag chain with frustrated J 1-J 2 Heisenberg
interactions, incorporating additional off-diagonal exchange interactions known as the Γ …

Scrambling and recovery of quantum information in inhomogeneous quenches in two-dimensional conformal field theories

K Goto, M Nozaki, S Ryu, K Tamaoka, MT Tan - Physical Review Research, 2024 - APS
We study various quantum quench processes induced by the Möbius/sine-square
deformation of the Hamiltonian in two-dimensional conformal field theories starting from the …

Emergent black hole dynamics in critical Floquet systems

B Lapierre, K Choo, C Tauber, A Tiwari, T Neupert… - Physical Review …, 2020 - APS
While driven interacting quantum matter is generically subject to heating and scrambling,
certain classes of systems evade this paradigm. We study such an exceptional class in …

Emergence of curved light-cones in a class of inhomogeneous Luttinger liquids

J Dubail, JM Stéphan, P Calabrese - SciPost Physics, 2017 - scipost.org
The light-cone spreading of entanglement and correlation is a fundamental and ubiquitous
feature of homogeneous extended quantum systems. Here we point out that a class of …

Emergent spatial structure and entanglement localization in Floquet conformal field theory

R Fan, Y Gu, A Vishwanath, X Wen - Physical Review X, 2020 - APS
We study the energy and entanglement dynamics of (1+ 1) D conformal field theories (CFTs)
under a Floquet drive with the sine-square deformed (SSD) Hamiltonian. Previous work has …

Floquet conformal field theories with generally deformed Hamiltonians

R Fan, Y Gu, A Vishwanath, X Wen - SciPost Physics, 2021 - scipost.org
In this work, we study non-equilibrium dynamics in Floquet conformal field theories (CFTs) in
1+ 1D, in which the driving Hamiltonian involves the energy-momentum density spatially …

Periodically, quasiperiodically, and randomly driven conformal field theories

X Wen, R Fan, A Vishwanath, Y Gu - Physical Review Research, 2021 - APS
In this paper and its upcoming sequel, we study nonequilibrium dynamics in driven (1+ 1)-
dimensional conformal field theories (CFTs) with periodic, quasiperiodic, and random …

Evolution operators in conformal field theories and conformal map**s: Entanglement Hamiltonian, the sine-square deformation, and others

X Wen, S Ryu, AWW Ludwig - Physical Review B, 2016 - APS
By making use of conformal map**, we construct various time-evolution operators in (1+
1)-dimensional conformal field theories (CFTs), which take the form∫ dxf (x) H (x), where H …

Fine structure of heating in a quasiperiodically driven critical quantum system

B Lapierre, K Choo, A Tiwari, C Tauber, T Neupert… - Physical Review …, 2020 - APS
We study the heating dynamics of a generic one-dimensional critical system when driven
quasiperiodically. Specifically, we consider a Fibonacci drive sequence comprising the …