Slow relaxation, confinement, and solitons

Abstract

Millisecond crystal relaxation has been used to explain anomalous decay in doped alkali halides. We attribute this slowness to Fermi-Pasta-Ulam solitons. Our model exhibits confinement of mechanical energy released by excitation. Extending the model to long times is justified by its relation to solitons, excitations previously proposed to occur in alkali halides. Soliton damping and observation are also discussed.

References in corpus (1)

• Energy Relaxation in Nonlinear One-Dimensional Lattices

Cited by in corpus (10)

• Discrete breathers in Fermi-Pasta-Ulam lattices
• Renormalized waves and discrete breathers in $\beta$-FPU chains
• Quantum signatures of breather-breather interactions
• FPU phenomenon for generic initial data
• Stability of quantum breathers
• Aharonov-Bohm effect for an exciton in a finite width nano-ring
• Trapping in quantum chains
• Structure and time-dependence of quantum breathers
• Energy thresholds of discrete breathers in thermal equilibrium and relaxation processes
• Classical and quantum nonlinear localized excitations in discrete systems