Texture control in a pseudospin Bose-Einstein condensate

TL;DR

This paper presents a wavefunction engineering method to create and control complex textures, including vortices and spin textures, in a two-component Bose-Einstein condensate through phase manipulation and interference.

Contribution

It introduces a novel approach for generating and controlling textures in Bose-Einstein condensates via phase-controlled wavepacket interference.

Findings

Successful numerical simulation of lattice-texture formation

Identification of half-quantum vortices and spin-2 textures

Correlation between interference patterns and texture locations

Abstract

We describe a wavefunction engineering approach to the formation of textures in a two-component nonrotated Bose-Einstein condensate. By controlling the phases of wavepackets that combine in a three-wave interference process, a ballistically-expanding regular lattice-texture is generated, in which the phases determine the component textures. A particular example is presented of a lattice-texture composed of half-quantum vortices and spin-2 textures. We demonstrate the lattice formation with numerical simulations of a viable experiment, identifying the textures and relating their locations to a linear theory of wavepacket interference.