12 citations · 22 across the 5 of their papers we have counts for
5 papers
Lyapunov exponents from unstable periodic orbits in the FPU-beta model
Roberto Franzosi, Pietro Poggi, Monica Cerruti-Sola
In the framework of a recently developed theory for Hamiltonian chaos, which makes use of the formulation of Newtonian dynamics in terms of Riemannian differential geometry, we obt…
From the superfluid to the Mott regime and back: triggering a non-trivial dynamics in an array of coupled condensates
P Buonsante, R Franzosi, V Penna
We consider a system formed by an array of Bose-Einstein condensates trapped in a harmonic potential with a superimposed periodic optical potential. Starting from the boson field H…
Persistence of mean-field features in the energy spectrum of small arrays of Bose-Einstein condensates
P. Buonsante, R. Franzosi, V. Penna
The Bose-Hubbard Hamiltonian capturing the essential physics of the arrays of interacting Bose-Einstein condensates is addressed, focusing on arrays consisting of two (dimer) and t…
Dynamics of twin-condensate configurations in an open chain of three Bose-Einstein condensates
P. Buonsante, R. Franzosi, V. Penna
The dynamics of a mean-field model of three coupled condensates is studied for initial states characterized by twin condensates. Condensates occupy an open three-well chain, where…
Topology and Phase Transitions: Theorem on a necessary relation
Roberto Franzosi, Marco Pettini, Lionel Spinelli
An emended and improved version of the present paper has been archived in math-ph/0505057, and a preliminary account of its content has been published in Phys.Rev.Lett. 92, 60601,…