Entanglement Hamiltonians: from field theory to lattice models and experiments

M Dalmonte, V Eisler, M Falconi… - Annalen der …, 2022 - Wiley Online Library
Results about entanglement (or modular) Hamiltonians of quantum many‐body systems in
field theory and statistical mechanics models, and recent applications in the context of …

Exploring large-scale entanglement in quantum simulation

MK Joshi, C Kokail, R van Bijnen, F Kranzl, TV Zache… - Nature, 2023 - nature.com
Entanglement is a distinguishing feature of quantum many-body systems, and uncovering
the entanglement structure for large particle numbers in quantum simulation experiments is …

Universal entanglement spectrum in one-dimensional gapless symmetry protected topological states

XJ Yu, S Yang, HQ Lin, SK Jian - Physical Review Letters, 2024 - APS
Quantum entanglement marks a definitive feature of topological states. However, the
entanglement spectrum remains insufficiently explored for topological states without a bulk …

Quantum phase transition and critical behavior between the gapless topological phases

HL Zhang, HZ Li, S Yang, XJ Yu - Physical Review A, 2024 - APS
The phase transition between gapped topological phases represents a class of
unconventional criticality beyond the Landau paradigm. However, recent research has …

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 …

Realizing the entanglement Hamiltonian of a topological quantum Hall system

Q Redon, Q Liu, JB Bouhiron, N Mittal, A Fabre… - Nature …, 2024 - nature.com
Topological quantum many-body systems are characterized by a hidden order encoded in
the entanglement between their constituents. While entanglement is often quantified using …

Algorithmic shadow spectroscopy

HHS Chan, R Meister, ML Goh, B Koczor - arxiv preprint arxiv:2212.11036, 2022 - arxiv.org
We present shadow spectroscopy as a simulator-agnostic quantum algorithm for estimating
energy gaps using very few circuit repetitions (shots) and no extra resources (ancilla qubits) …

Demonstrating the wormhole mechanism of the entanglement spectrum via a perturbed boundary

Z Liu, RZ Huang, Z Yan, DX Yao - Physical Review B, 2024 - APS
The Li-Haldane conjecture is one of the most famous conjectures in physics and opens a
new research area in the quantum entanglement and topological phase. Although a lot of …

Randomized measurement protocols for lattice gauge theories

J Bringewatt, J Kunjummen, N Mueller - Quantum, 2024 - quantum-journal.org
Randomized measurement protocols, including classical shadows, entanglement
tomography, and randomized benchmarking are powerful techniques to estimate …

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 …