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 …

Experimental observation of curved light-cones in a quantum field simulator

M Tajik, M Gluza, N Sebe… - Proceedings of the …, 2023 - National Acad Sciences
We investigate signal propagation in a quantum field simulator of the Klein–Gordon model
realized by two strongly coupled parallel one-dimensional quasi-condensates. By …

Quantum information geometry of driven CFTs

J de Boer, V Godet, J Kastikainen… - Journal of High Energy …, 2023 - Springer
A bstract Driven quantum systems exhibit a large variety of interesting and sometimes exotic
phenomena. Of particular interest are driven conformal field theories (CFTs) which describe …

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 …

Exact entanglement growth of a one-dimensional hard-core quantum gas during a free expansion

S Scopa, A Krajenbrink, P Calabrese… - Journal of Physics A …, 2021 - iopscience.iop.org
We consider the non-equilibrium dynamics of the entanglement entropy of a one-
dimensional quantum gas of hard-core particles, initially confined in a box potential at zero …

Geometric approach to inhomogeneous Floquet systems

B Lapierre, P Moosavi - Physical Review B, 2021 - APS
We present a new geometric approach to Floquet many-body systems described by
inhomogeneous conformal field theory in 1+ 1 dimensions. It is based on an exact …

Inhomogeneous quenches as state preparation in two-dimensional conformal field theories

M Nozaki, K Tamaoka, MT Tan - Physical Review D, 2024 - APS
The nonequilibrium process where the system does not evolve to the featureless state, that
without quantum properties, is one of the new central objects in the nonequilibrium …

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 …

Spatial deformation of many-body quantum chaotic systems and quantum information scrambling

K Goto, T Guo, T Nosaka, M Nozaki, S Ryu, K Tamaoka - Physical Review B, 2024 - APS
We numerically study the effect of spatial inhomogeneity on quantum information
scrambling, a process of spreading and locally hiding quantum information in quantum …

Anisotropic quantum hall droplets

B Oblak, B Lapierre, P Moosavi, JM Stéphan… - Physical Review X, 2024 - APS
We study two-dimensional (2D) droplets of noninteracting electrons in a strong magnetic
field, placed in a confining potential with arbitrary shape. Using semiclassical methods …