Levitation of Bose-Einstein condensates induced by macroscopic non-adiabatic quantum tunneling

TL;DR

This paper demonstrates how an oscillating magnetic field can induce levitation of two-component Bose-Einstein condensates through macroscopic non-adiabatic tunneling, revealing new quantum control mechanisms.

Contribution

It introduces a novel method to levitate Bose-Einstein condensates by tuning magnetic field oscillations, showcasing macroscopic non-adiabatic tunneling effects.

Findings

Magnetic field oscillation frequency controls levitation.

Levitated condensates counteract gravity.

Macroscopic non-adiabatic tunneling observed.

Abstract

We study the dynamics of two-component Bose-Einstein condensates trapped in different vertical positions in the presence of an oscillating magnetic field. It is shown here how tuning appropriately the oscillation frequency of the magnetic field leads to the levitation of the system against gravity. This phenomenon is a manifestation of a macroscopic non-adiabatic tunneling in a system with internal degrees of freedom.