Resonant Hamiltonian systems and weakly nonlinear dynamics in AdS spacetimes

O Evnin - Classical and Quantum Gravity, 2021 - iopscience.iop.org
Weakly nonlinear dynamics in anti-de Sitter (AdS) spacetimes is reviewed, kee** an eye
on the AdS instability conjecture and focusing on the resonant approximation that accurately …

Obstruction to ergodicity in nonlinear Schrödinger equations with resonant potentials

A Biasi, O Evnin, BA Malomed - Physical Review E, 2023 - APS
We identify a class of trap** potentials in cubic nonlinear Schrödinger equations (NLSEs)
that make them nonintegrable, but prevent the emergence of power spectra associated with …

Holographic solar systems and hydrogen atoms: non-relativistic physics in AdS and its CFT dual

H Maxfield, Z Zahraee - Journal of High Energy Physics, 2022 - Springer
A bstract We study a non-relativistic limit of physics in AdS which retains the curvature
through a harmonic Newtonian potential. This limit appears in a CFT dual through the …

de Sitter bubbles from anti–de Sitter fluctuations

A Biasi, O Evnin, S Sypsas - Physical Review Letters, 2022 - APS
Cosmological acceleration is difficult to accommodate in theories of fundamental
interactions involving supergravity and superstrings. An alternative is that the acceleration is …

A proof of the instability of AdS for the Einstein--massless Vlasov system

G Moschidis - arxiv preprint arxiv:1812.04268, 2018 - arxiv.org
In recent years, the AdS instability conjecture, put forward by Dafermos-Holzegel in 2006,
has attracted a substantial amount of numerical and heuristic studies. Following the …

Supersymmetric Galilean Electrodynamics

S Baiguera, L Cederle, S Penati - Journal of High Energy Physics, 2022 - Springer
A bstract In 2+ 1 dimensions, we propose a renormalizable non-linear sigma model action
which describes the\(\mathcal {N}\)= 2 supersymmetric generalization of Galilean …

Fermi-Pasta-Ulam phenomena and persistent breathers in the harmonic trap

A Biasi, O Evnin, BA Malomed - Physical Review E, 2021 - APS
We consider the long-term weakly nonlinear evolution governed by the two-dimensional
nonlinear Schrödinger (NLS) equation with an isotropic harmonic oscillator potential. The …

Bounds on quantum evolution complexity via lattice cryptography

B Craps, M De Clerck, O Evnin, P Hacker, M Pavlov - SciPost Physics, 2022 - scipost.org
We address the difference between integrable and chaotic motion in quantum theory as
manifested by the complexity of the corresponding evolution operators. Complexity is …

Energy returns in global

A Biasi, B Craps, O Evnin - Physical Review D, 2019 - APS
Recent studies of the weakly nonlinear dynamics of probe fields in global AdS 4 (and of the
nonrelativistic limit of AdS resulting in the Gross-Pitaevskii equation) have revealed a …

Particle dynamics on torsional galilean spacetimes

J Figueroa-O'Farrill, C Görmez, D Van den Bleeken - SciPost Physics, 2023 - scipost.org
We study free particle motion on homogeneous kinematical spacetimes of galilean type. The
three well-known cases of Galilei and (A) dS-Galilei spacetimes are included in our analysis …