Weakly bound states of polar molecules in bilayers

TL;DR

This paper studies the bound states of two polarized molecules in adjacent layers, revealing universal behavior in weakly bound states influenced by dipole interactions and polarization angle.

Contribution

It provides a detailed analysis of the ground state properties of bilayer polar molecules, highlighting the universal features of weakly bound states.

Findings

A bound state always exists in the system.

Weakly bound states extend to large distances and exhibit universal behavior.

Ground state properties depend on dipole moment and polarization angle.

Abstract

We investigate a system of two polarized molecules in a layered trap. The molecules reside in adjacent layers and interact purely via the dipole-dipole interaction. We determine the properties of the ground state of the system as a function of the dipole moment and polarization angle. A bound state is always present in the system and in the weak binding limit the bound state extends to a very large distance and shows universal behavior.