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 …

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 …

Out-of-Time-Order correlators in driven conformal field theories

S Das, B Ezhuthachan, A Kundu, S Porey… - Journal of High Energy …, 2022 - Springer
A bstract We compute Out-of-Time-Order correlators (OTOCs) for conformal field theories
(CFTs) subjected to either continuous or discrete periodic drive protocols. This is achieved …

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 …

Exactly solvable floquet dynamics for conformal field theories in dimensions greater than two

D Das, SR Das, A Kundu, K Sengupta - Journal of High Energy Physics, 2024 - Springer
A bstract We find classes of driven conformal field theories (CFT) in d+ 1 dimensions with d>
1, whose quench and floquet dynamics can be computed exactly. The setup is suitable for …

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 …

Bridging two quantum quench problems—local joining quantum quench and Möbius quench—and their holographic dual descriptions

J Kudler-Flam, M Nozaki, T Numasawa, S Ryu… - Journal of High Energy …, 2024 - Springer
A bstract We establish an equivalence between two different quantum quench problems, the
joining local quantum quench and the Möbius quench, in the context of (1+ 1)-dimensional …

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 …

Floquet's refrigerator: Conformal cooling in driven quantum critical systems

X Wen, R Fan, A Vishwanath - arXiv preprint arXiv:2211.00040, 2022 - arxiv.org
We propose a general method of cooling--periodic driving generated by spatially deformed
Hamiltonians--and study it in general one-dimensional quantum critical systems described …