Symmetry-resolved dynamical purification in synthetic quantum matter

V Vitale, A Elben, R Kueng, A Neven, J Carrasco… - SciPost Physics, 2022 - scipost.org
When a quantum system initialized in a product state is subjected to either coherent or
incoherent dynamics, the entropy of any of its connected partitions generically increases as …

Symmetry decomposition of negativity of massless free fermions

S Murciano, R Bonsignori, P Calabrese - SciPost Physics, 2021 - scipost.org
We consider the problem of symmetry decomposition of the entanglement negativity in free
fermionic systems. Rather than performing the standard partial transpose, we use the partial …

Channeling quantum criticality

Y Zou, S Sang, TH Hsieh - Physical Review Letters, 2023 - APS
We analyze the effect of decoherence, modeled by local quantum channels, on quantum
critical states and we find universal properties of the resulting mixed state's entanglement …

Enhanced entanglement negativity in boundary-driven monitored fermionic chains

X Turkeshi, L Piroli, M Schiró - Physical Review B, 2022 - APS
We investigate entanglement dynamics in continuously monitored open quantum systems
featuring current-carrying nonequilibrium states. We focus on a prototypical one …

Dynamics of charge-imbalance-resolved entanglement negativity after a quench in a free-fermion model

G Parez, R Bonsignori… - Journal of Statistical …, 2022 - iopscience.iop.org
The presence of a global internal symmetry in a quantum many-body system is reflected in
the fact that the entanglement between its subparts is endowed with an internal structure …

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 …

Finite-temperature entanglement negativity of fermionic symmetry-protected topological phases and quantum critical points in one dimension

W Choi, M Knap, F Pollmann - Physical Review B, 2024 - APS
We study the logarithmic entanglement negativity of symmetry-protected topological (SPT)
phases and quantum critical points (QCPs) of one-dimensional noninteracting fermions at …

Negativity Hamiltonian: an operator characterization of mixed-state entanglement

S Murciano, V Vitale, M Dalmonte, P Calabrese - Physical Review Letters, 2022 - APS
In the context of ground states of quantum many-body systems, the locality of entanglement
between connected regions of space is directly tied to the locality of the corresponding …

Symmetric inseparability and number entanglement in charge-conserving mixed states

Z Ma, C Han, Y Meir, E Sela - Physical Review A, 2022 - APS
We explore sufficient conditions for inseparability in mixed states with a globally conserved
charge, such as a particle number. We argue that even separable states may contain …

Multipartitioning topological phases by vertex states and quantum entanglement

Y Liu, R Sohal, J Kudler-Flam, S Ryu - Physical Review B, 2022 - APS
We discuss multipartitions of the gapped ground states of (2+ 1)-dimensional topological
liquids into three (or more) spatial regions that are adjacent to each other and meet at points …