Derives a new kinetic equation for the alpha-FPUT lattice with site-dependent coefficients, revealing a resonant three-wave manifold and faster thermalization plus Bragg scattering.
Com- munications on Pure and Applied Mathematics: A Journal Issued by the Courant Institute of Mathematical Sciences61(12), 1753–1786 (2008)
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Resonant interactions in the $\alpha$-FPUT lattice with site-dependent coefficients
Derives a new kinetic equation for the alpha-FPUT lattice with site-dependent coefficients, revealing a resonant three-wave manifold and faster thermalization plus Bragg scattering.