Discrete breathers in a triangular β-Fermi-Pasta-Ulam-Tsingou lattice

• المؤلفون الرئيسيون: Babicheva, Rita I., Semenov, Alexander S., Soboleva, Elvira G., Kudreyko, Aleksey A., Zhou, Kun, Dmitriev, Sergey V.
• مؤلفون آخرون: School of Mechanical and Aerospace Engineering
• التنسيق: مقال
• اللغة: English
• منشور في: 2021
• الموضوعات: Science::Physics; Breathers; Nonlinear Dynamics
• الوصول للمادة أونلاين: https://hdl.handle.net/10356/151109
• المؤسسة: Nanyang Technological University

A practical approach to the search for (quasi-) discrete breathers (DBs) in a triangular β-FPUT lattice (after Fermi, Pasta, Ulam, and Tsingou) is proposed. DBs are obtained by superimposing localizing functions on delocalized nonlinear vibrational modes (DNVMs) having frequencies above the phonon s...