Effect of Dimple Potential on Ultraslow Light in a Bose-Einstein Condensate

TL;DR

This paper studies how a dimple potential affects the propagation of ultraslow light in a Bose-Einstein condensate, revealing significant group delays influenced by the potential's depth.

Contribution

It introduces the impact of dimple potentials on ultraslow light propagation in BECs using the Gross-Pitaevskii equation to analyze group velocity and delay.

Findings

Large group delays of about 1 ms observed

Dimple potential depth significantly influences light delay

Density profile modeled with nonlinear Schrödinger equation

Abstract

We investigate the propagation of ultraslow optical pulse in atomic Bose-Einstein condensate in a harmonic trap decorated with a dimple potential. The role of dimple potential on the group velocity and time delay is studied. Since we consider the interatomic scattering interactions nonlinear Schrodinger equation or Gross-Pitaevskii equation is used in order to get the density profile of the atomic system. We find large group delays of order 1 msec in an atomic Bose-Einstein condensate in a harmonic trap with a deep dimple potential.