Nonlinear Josephson-type oscillations of a driven, two-component Bose-Einstein condensate

TL;DR

This paper proposes an experiment to observe nonlinear Josephson oscillations in a driven two-component Bose-Einstein condensate, analyzing the effects of mean field interactions on the system's dynamics.

Contribution

It introduces a novel experimental setup and theoretical model for studying nonlinear Josephson oscillations in a driven, two-component BEC.

Findings

Demonstrates the feasibility of observing nonlinear Josephson oscillations

Analyzes the impact of mean field effects on oscillation dynamics

Provides a theoretical framework for future experiments

Abstract

We propose an experiment that would demonstrate nonlinear Josephson-type oscillations in the relative population of a driven, two-component Bose-Einstein condensate. An initial state is prepared in which two condensates exist in a magnetic trap, each in a different hyperfine state, where the initial populations and relative phase between condensates can be controlled within experimental uncertainty. A weak driving field is then applied, which couples the two internal states of the atom and consequently transfers atoms back and forth between condensates. We present a model of this system and investigate the effect of the mean field on the dynamical evolution.