Heteroclinic-structure transition of the pure quartic modulation instability

Xiankun Yao, Chong Liu, Zhan-Ying Yang +1

We show that, in the pure-quartic systems, modulation instability (MI) undergoes heteroclinic-structure transitions (HSTs) at two critical frequencies of ω c1 and ω c2 ( ω c2 > ω c…