Is there an accelerating nonspreading wave packet in the Schrödinger equation with higher even-order dispersions?
arXiv:2609.25799
Abstract
Probably not. For Airy-type initial data, although nearly all lobes accelerate, the principal lobe remains essentially stationary. Moreover, the overall wave packet gradually disperses.
Article has been accepted for publication in Physics Letters A (Ref: PLA_PHYLA-D-26-00891)