Tunneling of ultracold atoms in time-independent potentials

TL;DR

This paper explores both theoretical and experimental aspects of resonantly enhanced quantum tunneling of Bose-Einstein condensates in optical lattices, highlighting their potential for controlling tunneling dynamics and simulating solid state Hamiltonians.

Contribution

It provides new insights into controlling quantum tunneling in condensates and demonstrates their application in simulating complex solid state systems.

Findings

Resonant tunneling can be enhanced in Bose-Einstein condensates

Atom-atom interactions influence tunneling behavior

Optical lattices enable dynamical control of quantum tunneling

Abstract

We present theoretical as well as experimental results on resonantly enhanced quantum tunneling of Bose-Einstein condensates in optical lattices both in the linear case of single particle dynamics and in the presence of atom-atom interactions. Our results demonstrate the usefulness of condensates in optical lattices for the dynamical control of tunneling and for simulating Hamiltonians originally used for describing solid state phenomena.