Multicriticality in Yang-Lee edge singularity

M Lencsés, A Miscioscia, G Mussardo… - Journal of High Energy …, 2023 - Springer
A bstract In this paper we study the non-unitary deformations of the two-dimensional
Tricritical Ising Model obtained by coupling its two spin ℤ 2 odd operators to imaginary …

Entanglement dynamics in confining spin chains

S Scopa, P Calabrese, A Bastianello - Physical Review B, 2022 - APS
The confinement of elementary excitations induces distinctive features in the non-
equilibrium quench dynamics. One of the most remarkable is the suppression of …

Quantum integrability vs experiments: correlation functions and dynamical structure factors

M Lencsés, G Mussardo, G Takács - Journal of Physics A …, 2023 - iopscience.iop.org
Abstract Integrable Quantum Field Theories can be solved exactly using bootstrap
techniques based on their elastic and factorisable S-matrix. While knowledge of the …

[HTML][HTML] Chirally factorised truncated conformal space approach

DX Horváth, K Hódsági, G Takács - Computer Physics Communications, 2022 - Elsevier
Abstract Truncated Conformal Space Approach (TCSA) is a highly efficient method to
compute spectra, operator matrix elements and time evolution in quantum field theories …

Variations on vacuum decay: The scaling Ising and tricritical Ising field theories

M Lencsés, G Mussardo, G Takács - Physical Review D, 2022 - APS
We study the decay of the false vacuum in the scaling Ising and tricritical Ising field theories
using the truncated conformal space approach and compare the numerical results to …

Quantum simulation of the tricritical Ising model in tunable Josephson junction ladders

L Maffi, N Tausendpfund, M Rizzi, M Burrello - Physical Review Letters, 2024 - APS
Modern hybrid superconductor-semiconductor Josephson junction arrays are a promising
platform for analog quantum simulations. Their controllable and nonsinusoidal energy …

2d QCD and Integrability, Part I:'t Hooft model

F Ambrosino, S Komatsu - arXiv preprint arXiv:2312.15598, 2023 - arxiv.org
We study analytical properties and integrable structures of the meson spectrum in large $
N_c $ QCD $ _2 $. We show that the integral equation that determines the masses of the …

Reduced density matrix and entanglement of interacting quantum field theories with Hamiltonian truncation

P Emonts, I Kukuljan - Physical Review Research, 2022 - APS
Entanglement is the fundamental difference between classical and quantum systems and
has become one of the guiding principles in the exploration of high-and low-energy physics …

RG boundaries and Cardy's variational ansatz for multiple perturbations

A Konechny - Journal of High Energy Physics, 2023 - Springer
A bstract We consider perturbations of 2D CFTs by multiple relevant operators. The massive
phases of such perturbations can be labeled by conformal boundary conditions. Cardy's …

[PDF][PDF] 2d QCD and Integrability

F Ambrosino, S Komatsu - Part II: Generalised QCD, to appear, 2023 - bib-pubdb1.desy.de
We study analytical properties and integrable structures of the meson spectrum in large Nc
QCD2. We show that the integral equation that determines the masses of the mesons, often …