Infinitely-long-range nonlocal potentials and the Bose-Einstein supersolid phase

TL;DR

This paper demonstrates that Bose-Einstein condensates with infinitely long-range nonlocal interactions naturally form a self-organized supersolid phase, characterized by a Bloch wave structure.

Contribution

It introduces the concept that infinitely long-range nonlocal interactions induce a supersolid phase in Bose-Einstein condensates, supported by the Bogoliubov inequality.

Findings

Bose-Einstein condensates can have a Bloch form under certain interactions.

Infinitely long-range nonlocal interactions lead to supersolid behavior.

The supersolid phase is a self-organized state arising from the interaction properties.

Abstract

It is shown, with the aid of the Bogoliubov inequality, that a Bose-Einstein condensate has the Bloch form and represents a self-organized supersolid provided the interaction between the condensate atoms is nonlocal and of infinitely long-range.