Soliton Transformation (IMAGE) Institute for Basic Science Caption When two solitons meet, they switch type, following a quaternary system made of only four numbers: -1, 0, 1 and 2. In this case a -1 soliton meets with a 2 soliton to form a 1 soliton. Credit IBS Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.