Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Rottoli, Federico"'
The entanglement Hamiltonian (EH) provides the most comprehensive characterization of bipartite entanglement in many-body quantum systems. Ground states of local Hamiltonians inherit this locality, resulting in EHs that are dominated by local, few-bo
Externí odkaz:
http://arxiv.org/abs/2407.01730
Entanglement Hamiltonians provide the most comprehensive characterisation of entanglement in extended quantum systems. A key result in unitary quantum field theories is the Bisognano-Wichmann theorem, which establishes the locality of the entanglemen
Externí odkaz:
http://arxiv.org/abs/2402.04776
Publikováno v:
JHEP 02 (2024) 053
We study the R\'enyi entanglement entropies along the massless renormalisation group flow that connects the tricritical and critical Ising field theories. Similarly to the massive integrable field theories, we derive a set of bootstrap equations, fro
Externí odkaz:
http://arxiv.org/abs/2309.17199
Publikováno v:
JHEP 06 (2023) 139
The negativity Hamiltonian, defined as the logarithm of a partially transposed density matrix, provides an operatorial characterisation of mixed-state entanglement. However, so far, it has only been studied for the mixed-state density matrices corres
Externí odkaz:
http://arxiv.org/abs/2304.09906
Publikováno v:
J. Stat. Mech. (2023) 013103
We study the ground-state entanglement Hamiltonian of several disjoint intervals for the massless Dirac fermion on the half-line. Its structure consists of a local part and a bi-local term that couples each point to another one in each other interval
Externí odkaz:
http://arxiv.org/abs/2210.12109
Publikováno v:
EPL 141 (2023) 31002
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 scatterer leads to a linear growth of the entanglement entropy contr
Externí odkaz:
http://arxiv.org/abs/2210.02162
We consider topological gauge theories in three dimensions which are defined by metric independent lagrangians. It has been claimed that the functional integration necessarily depends nontrivially on the gauge-fixing metric. We demonstrate that the p
Externí odkaz:
http://arxiv.org/abs/2205.03875
Publikováno v:
J. Stat. Mech. (2022) 063103
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 exploit the recent development of quantum fluctuating hydrodynamics. O
Externí odkaz:
http://arxiv.org/abs/2202.04380
We discuss the algorithmic problem of minimal coupling gauge fields of the Yang-Mills type to Quantum Gravity in the approach known as Causal Dynamical Triangulations (CDT) as a step towards studying, ultimately, systems of gravity coupled with boson
Externí odkaz:
http://arxiv.org/abs/2112.03157
We discuss the discretization of Yang-Mills theories on Dynamical Triangulations in the compact formulation, with gauge fields living on the links of the dual graph associated with the triangulation, and the numerical investigation of the minimally c
Externí odkaz:
http://arxiv.org/abs/2010.15714