Mesoscopic Transport and Interferometry with Wavepackets of Ultracold atoms: Effects of Quantum Coherence and Interactions

TL;DR

This paper introduces a method to simulate mesoscopic transport using ultracold atom wavepackets in 1D waveguides, revealing quantum coherence effects and tunable interactions for advanced atom interferometry.

Contribution

It presents a novel simulation approach for mesoscopic transport with ultracold atoms, enabling detailed study of quantum coherence and interactions at the mode level.

Findings

Quantitative agreement with analytical transport models

Observation of quantum coherence effects in ultracold atom systems

Potential development of sensitive atom interferometers

Abstract

We propose a way to simulate mesoscopic transport processes with counter-propagating wavepackets of ultracold atoms in quasi one-dimensional (1D) waveguides, and show quantitative agreement with analytical results. The method allows the study of a broad range of transport processes at the level of individual modes, not possible in electronic systems. Typically suppressed effects of quantum coherence become manifest, along with the effects of tunable interactions, which can be used to develop a simpler type of sensitive atom interferometer.