Unravelling quantum dynamics using flow equations

SJ Thomson, J Eisert - Nature Physics, 2024 - nature.com
The study of many-body quantum dynamics in strongly correlated systems is extremely
challenging. To date, few numerical methods exist that are capable of simulating the non …

Many-body open quantum systems

R Fazio, J Keeling, L Mazza, M Schiro - arxiv preprint arxiv:2409.10300, 2024 - arxiv.org
These Lecture Notes discuss the recent theoretical advances in the understanding of open
quantum many-body physics in platforms where both dissipative and coherent processes …

Noninteracting fermionic systems with localized losses: Exact results in the hydrodynamic limit

V Alba, F Carollo - Physical Review B, 2022 - APS
We investigate the interplay between unitary and nonunitary dynamics after a quantum
quench in a noninteracting fermionic chain. In particular, we consider the effect of localized …

Unbounded entanglement production via a dissipative impurity

V Alba - SciPost Physics, 2022 - scipost.org
We investigate the entanglement dynamics in a free-fermion chain initially prepared in a
Fermi sea and subjected to localized losses (dissipative impurity). We derive a formula …

Local integrals of motion in quasiperiodic many-body localized systems

SJ Thomson, M Schirò - SciPost Physics, 2023 - scipost.org
Local integrals of motion play a central role in the understanding of many-body localization
in many-body quantum systems in one dimension subject to a random external potential, but …

Orthogonality catastrophe beyond bosonization from post-selection

M Stefanini, J Marino - Physical Review Research, 2024 - APS
We show that the dynamics induced by post-selected measurements can serve as a
controlled route to access physical processes beyond the boundaries of Luttinger liquid …

Quasi-many-body localization of interacting fermions with long-range couplings

SJ Thomson, M Schiró - Physical Review Research, 2020 - APS
A number of experimental platforms for quantum simulations of disordered quantum matter,
from dipolar systems to trapped ions, involve degrees of freedom which are coupled by …

Series expansions in closed and open quantum many-body systems with multiple quasiparticle types

L Lenke, A Schellenberger, KP Schmidt - Physical Review A, 2023 - APS
The established approach of perturbative continuous unitary transformations (pCUTs)
constructs effective quantum many-body Hamiltonians as perturbative series that conserve …

Nonlocal correlations in noisy multiqubit systems simulated using matrix product operators

H Landa, G Misguich - SciPost Physics Core, 2023 - scipost.org
We introduce an open-source solver for the Lindblad master equation, based on matrix
product states and matrix product operators. Using this solver we study the dynamics of tens …

Disorder-induced spin-charge separation in the one-dimensional Hubbard model

SJ Thomson - Physical Review B, 2023 - APS
Many-body localization is believed to be generically unstable in quantum systems with
continuous non-Abelian symmetries, even in the presence of strong disorder. Breaking …