Optical computing with soliton trains in Bose-Einstein condensates

TL;DR

This paper explores how controlled soliton trains in Bose-Einstein condensates can be used for optical computing by encoding, manipulating, and reading out information through their frequency and density profiles.

Contribution

It introduces a novel method of using soliton train frequencies in BEC for optical computing, including data storage, manipulation, and readout techniques.

Findings

Soliton train frequency can be controlled via interaction changes.

Data can be stored temporarily in soliton train frequencies.

Manipulation of soliton trains is achievable through phase engineering.

Abstract

Optical computing devices can be implemented based on controlled generation of soliton trains in single and multicomponent Bose-Einstein condensates (BEC). Our concepts utilize the phenomenon that the frequency of soliton trains in BEC can be governed by changing interactions within the atom cloud. We use this property to store numbers in terms of those frequencies for a short time until observation. The properties of soliton trains can be changed in an intended way by other components of BEC occupying comparable states or via phase engineering. We elucidate in which sense such an additional degree of freedom can be regarded as a tool for controlled manipulation of data. Finally the outcome of any manipulation made is read out by observing the signature within the density profile.