Energy spreading, equipartition, and chaos in lattices with non-central forces
Arnold Ngapasare, Georgios Theocharis, Olivier Richoux, Vassos Achilleos, and Charalampos Skokos
Chin. Phys. B . 2022, (2): 20506 -020506 .  DOI: 10.1088/1674-1056/ac3a5e