Accelerated Bose-Einstein condensates in a double-well potential

TL;DR

This paper analyzes the dynamics of Bose-Einstein condensates in a double-well potential under acceleration, linking observable oscillation features to physical parameters for precision measurement applications.

Contribution

It provides a detailed analysis of how acceleration affects BECs in double-well potentials and relates observable quantities to system parameters, aiding sensor development.

Findings

Observable oscillation periods depend on acceleration and initial energy.

The phase-shift analysis enables precise measurement of physical constants.

Model clarifies the relationship between system parameters and measurable dynamics.

Abstract

Devices based on ultracold atoms moving in an accelerating optical lattice or double-well potential are a promising tool for precise measurements of fundamental physical constants as well as for the construction of sensors. Here, we carefully analyze the model of a couple of BECs separated by a barrier in an accelerated field and we show how the observable quantities, mainly the period of the beating motion or of the phase-shift, are related to the physical parameters of the model as well as to the energy of the initial state.