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Spatial Separation of Molecular Conformers and Clusters

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Quantum halo states in two-dimensional dipolar clusters.

G Guijarro¹, G E Astrakharchik², J Boronat²

¹Departament de Física, Campus Nord B4-B5, Universitat Politècnica de Catalunya, 08034, Barcelona, Spain. guijarrogg@gmail.com.

Scientific Reports

|October 1, 2021

Summary

Researchers demonstrate novel quantum halo states with up to six atoms using dipolar atoms in a bilayer system. These findings expand the understanding of few-body physics and ultracold gases.

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Area of Science:

Quantum physics
Ultracold atomic gases

Background:

Quantum halos are bound states extending into classically forbidden regions.
Previous observations of halos involved only two or three atoms.

Purpose of the Study:

To propose and investigate the realization of halo states with up to six atoms.
To explore few-body clusters of bosonic dipolar atoms in a bilayer geometry.

Main Methods:

Theoretical investigation of binding energies, correlation functions, and spatial distributions.
Analysis of few-body clusters composed by bosonic dipolar atoms in a bilayer setup.

Main Results:

Two distinct halo structures were identified.
A symmetric halo structure was observed for large interlayer separations.
A highly anisotropic halo shape was found near the unbinding threshold.

Conclusions:

This work presents a pathway for experimentally realizing multi-atom halo states with dipolar interactions.
The findings contribute to the study of few-body physics in ultracold atomic systems.