Zobrazeno 1 - 10
of 63
pro vyhledávání: '"Pettini, Giulio"'
Publikováno v:
Physical Review RESEARCH 6, 023244 (2024)
We present a direct comparison between the stroboscopic and non-stroboscopic effective approaches for ultracold atoms in shaken honeycomb lattices, focusing specifically on the optimal driving introduced by A. Verdeny and F. Mintert [Phys. Rev. A 92,
Externí odkaz:
http://arxiv.org/abs/2402.12113
Autor:
Pettini, Giulio1 (AUTHOR) pettini@fi.unifi.it, Gori, Matteo2 (AUTHOR) gori6matteo@gmail.com, Pettini, Marco3,4,5 (AUTHOR) marco.pettini@gmail.com
Publikováno v:
Entropy. Oct2024, Vol. 26 Issue 10, p840. 27p.
Publikováno v:
J. Phys. A: Math. Theor. 55 (2022) 375002
The investigation of the Hamiltonian dynamical counterpart of phase transitions, combined with the Riemannian geometrization of Hamiltonian dynamics, has led to a preliminary formulation of a differential-topological theory of phase transitions. In f
Externí odkaz:
http://arxiv.org/abs/2207.05077
This paper tackles Hamiltonian chaos by means of elementary tools of Riemannian geometry. More precisely, a Hamiltonian flow is identified with a geodesic flow on configuration space-time endowed with a suitable metric due to Eisenhart. Until now, th
Externí odkaz:
http://arxiv.org/abs/2101.00997
Publikováno v:
Entropy 2020, 22, 380
In the present work, we discuss how the functional form of thermodynamic observables can be deduced from the geometric properties of subsets of phase space. The geometric quantities taken into account are mainly extrinsic curvatures of the energy lev
Externí odkaz:
http://arxiv.org/abs/2002.06986
Publikováno v:
Phys. Rev. A 98, 043624 (2018)
We revisit the dynamics of a Bose-Einstein condensate in a double-well potential, from the regime of Josephson plasma oscillations to the self-trapping regime, by means of the Bogoliubov quasiparticle projection method. For very small imbalance betwe
Externí odkaz:
http://arxiv.org/abs/1807.06682
Autor:
Modugno, Michele, Pettini, Giulio
Publikováno v:
Phys. Rev. A 96, 053603 (2017)
We investigate the correspondence between the tight-binding Floquet Hamiltonian of a periodically modulated honeycomb lattice and the Haldane model. We show that - though the two systems share the same topological phase diagram, as reported in a brea
Externí odkaz:
http://arxiv.org/abs/1708.00242
Publikováno v:
Physica A516, 376 (2019)
In this paper we investigate the Hamiltonian dynamics of a lattice gauge model in three spatial dimension. Our model Hamiltonian is defined on the basis of a continuum version of a duality transformation of a three dimensional Ising model. The system
Externí odkaz:
http://arxiv.org/abs/1706.07950
Publikováno v:
Sci China-Phys Mech Astron, 59(6), 660001 (2016)
Tight-binding models for ultracold atoms in optical lattices can be properly defined by using the concept of maximally localized Wannier functions for composite bands. The basic principles of this approach are reviewed here, along with different appl
Externí odkaz:
http://arxiv.org/abs/1512.05995
Publikováno v:
In Physica D: Nonlinear Phenomena August 2021 422