Scaling of fronts and entanglement spreading during a domain wall melting

S Scopa, D Karevski - The European Physical Journal Special Topics, 2023 - Springer
We revisit the out-of-equilibrium physics arising during the unitary evolution of a one-
dimensional XXZ spin chain initially prepared in a domain wall state| ψ 0⟩=|⋯↑↑↓↓⋯⟩ …

Charge-resolved entanglement in the presence of topological defects

DX Horváth, S Fraenkel, S Scopa, C Rylands - Physical Review B, 2023 - APS
Topological excitations or defects such as solitons are ubiquitous throughout physics,
supporting numerous interesting phenomena like zero-energy modes with exotic statistics …

Exact hydrodynamic description of symmetry-resolved Rényi entropies after a quantum quench

S Scopa, DX Horváth - Journal of Statistical Mechanics: Theory …, 2022 - iopscience.iop.org
We investigate the non-equilibrium dynamics of the symmetry-resolved Rényi entropies in a
one-dimensional gas of non-interacting spinless fermions by means of quantum generalised …

Generalized hydrodynamics of the repulsive spin- Fermi gas

S Scopa, P Calabrese, L Piroli - Physical Review B, 2022 - APS
We study nonhomogeneous quantum quenches in a one-dimensional gas of repulsive spin-
1/2 fermions, as described by the integrable Yang-Gaudin model. By means of generalized …

One-particle density matrix and momentum distribution of the out-of-equilibrium one-dimensional Tonks-Girardeau gas: Analytical results at large

S Scopa, P Ruggiero, P Calabrese, J Dubail - Physical Review A, 2023 - APS
In one-dimensional (1D) quantum gases, the momentum distribution (MD) of the atoms is a
standard experimental observable, routinely measured in various experimental setups. The …

Domain wall melting across a defect

L Capizzi, S Scopa, F Rottoli, P Calabrese - Europhysics Letters, 2023 - iopscience.iop.org
We study the melting of a domain wall in a free-fermionic chain with a localised impurity. We
find that the defect enhances quantum correlations in such a way that even the smallest …

Exact hydrodynamic solution of a double domain wall melting in the spin-1/2 XXZ model

S Scopa, P Calabrese, J Dubail - SciPost Physics, 2022 - scipost.org
We investigate the non-equilibrium dynamics of a one-dimensional spin-1/2 XXZ model at
zero-temperature in the regime $|\Delta|< 1$, initially prepared in a product state with two …

Transport and entanglement across integrable impurities from generalized hydrodynamics

C Rylands, P Calabrese - Physical Review Letters, 2023 - APS
Quantum impurity models (QIMs) are ubiquitous throughout physics. As simplified toy
models they provide crucial insights for understanding more complicated strongly correlated …

Entanglement Hamiltonian during a domain wall melting in the free Fermi chain

F Rottoli, S Scopa, P Calabrese - Journal of Statistical Mechanics …, 2022 - iopscience.iop.org
We study the unitary time evolution of the entanglement Hamiltonian of a free Fermi lattice
gas in one dimension initially prepared in a domain wall configuration. To this aim, we …

Inhomogeneous quantum quenches in the sine-Gordon theory

DX Horvath, S Sotiriadis, M Kormos, G Takács - SciPost Physics, 2022 - scipost.org
We study inhomogeneous quantum quenches in the attractive regime of the sine-Gordon
model. In our protocol, the system is prepared in an inhomogeneous initial state in finite …