Quantum criticality under imperfect teleportation

P Sala, S Murciano, Y Liu, J Alicea - PRX Quantum, 2024 - APS
Entanglement, measurement, and classical communication together enable teleportation of
quantum states between distant parties, in principle, with perfect fidelity. To what extent do …

Lack of symmetry restoration after a quantum quench: an entanglement asymmetry study

F Ares, S Murciano, E Vernier, P Calabrese - SciPost Physics, 2023 - scipost.org
We consider the quantum quench in the XX spin chain starting from a tilted Néel state which
explicitly breaks the $ U (1) $ symmetry of the post-quench Hamiltonian. Very surprisingly …

Entanglement measures in a nonequilibrium steady state: Exact results in one dimension

S Fraenkel, M Goldstein - SciPost Physics, 2021 - scipost.org
Entanglement plays a prominent role in the study of condensed matter many-body systems:
Entanglement measures not only quantify the possible use of these systems in quantum …

Symmetry resolved entanglement: exact results in 1D and beyond

S Fraenkel, M Goldstein - Journal of Statistical Mechanics: Theory …, 2020 - iopscience.iop.org
In a quantum many-body system that possesses an additive conserved quantity, the
entanglement entropy of a subsystem can be resolved into a sum of contributions from …

Symmetry-resolved entanglement in a long-range free-fermion chain

F Ares, S Murciano, P Calabrese - Journal of Statistical …, 2022 - iopscience.iop.org
We investigate the symmetry resolution of entanglement in the presence of long-range
couplings. To this end, we study the symmetry-resolved entanglement entropy in the ground …

Topological edge modes and phase transitions in a critical fermionic chain with long-range interactions

WH Zhong, WL Li, YC Chen, XJ Yu - Physical Review A, 2024 - APS
Long-range interactions can fundamentally alter properties in gapped topological phases
such as emergent massive edge modes. However, recent research has shifted attention to …

Probing quantum speed limits with ultracold gases

A Del Campo - Physical Review Letters, 2021 - APS
Quantum speed limits (QSLs) rule the minimum time for a quantum state to evolve into a
distinguishable state in an arbitrary physical process. These fundamental results constrain a …

Scaling of temporal entanglement in proximity to integrability

A Lerose, M Sonner, DA Abanin - Physical Review B, 2021 - APS
Describing dynamics of quantum many-body systems is a formidable challenge due to rapid
generation of quantum entanglement between remote degrees of freedom. A promising …

Extensive long-range entanglement in a nonequilibrium steady state

S Fraenkel, M Goldstein - SciPost Physics, 2023 - scipost.org
Entanglement measures constitute powerful tools in the quantitative description of quantum
many-body systems out of equilibrium. We study entanglement in the current-carrying steady …

Logarithmic entanglement scaling in dissipative free-fermion systems

A D'Abbruzzo, V Alba, D Rossini - Physical Review B, 2022 - APS
We study the quantum information spreading in one-dimensional free-fermion systems in the
presence of localized thermal baths. We employ a nonlocal Lindblad master equation to …