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8 papers · 2 filters
Fractional Dynamics and Modulational Instability in Long-Range Heisenberg Chains
Laetitia Mbetkwe Youwa, Jean Pierre Nguenang, Paul André Paglan +3
We study the effective dynamics of ferromagnetic spin chains in presence of long-range interactions. We consider the Heisenberg Hamiltonian in one dimension for which the spins are…
Linking fluctuation and dissipation in spatially extended out-of-equilibrium systems
Alex Fontana, Ludovic Bellon
For systems in equilibrium at a temperature , thermal noise and energy damping are related to through the fluctuation-dissipation theorem (FDT). We study here an extension o…
Is glass a state of matter?
Benjamin Guiselin, Gilles Tarjus, Ludovic Berthier
Glass is everywhere. We use and are surrounded by glass objects which make tangible the reality of glass as a distinct state of matter. Yet, glass as we know it is usually obtained…
Anomalous Luttinger equivalence between temperature and curved spacetime: From black hole's atmosphere to thermal quenches
Baptiste Bermond, Maxim Chernodub, Adolfo G. Grushin +1
Building on the idea of Tolman and Ehrenfest that heat has weight, Luttinger established a deep connection between gravitational fields and thermal transport. However, this relatio…
Dynamics of a colloidal particle coupled to a Gaussian field: from a confinement-dependent to a non-linear memory
U. Basu, V. Démery, A. Gambassi
The effective dynamics of a colloidal particle immersed in a complex medium is often described in terms of an overdamped linear Langevin equation for its velocity with a memory ker…
Path large deviations for the kinetic theory of weak turbulence
Jules Guioth, Freddy Bouchet, Gregory L. Eyink
We consider a generic Hamiltonian system of nonlinear interacting waves with 3-wave interactions. In the kinetic regime of wave turbulence, which assumes weak nonlinearity and larg…