One Dimensional Gas

"A team of physicists have created a one-dimensional gas out of light, studying the strange properties of this strange state of matter."

https://www.iflscience.com/physicists-turn-light-into-a-one-dimensional-gas-with-incredibly-strange-properties-75963?utm_source=The+IFLScience+Newsletter&utm_campaign=e5de86469f-ICYMI-18-09-24&utm_medium=email&utm_term=0_-c13f3c4e60-%5BLIST_EMAIL_ID%5D&goal=0_3aa1738e2a-e5de86469f-272567312&mc_cid=e5de86469f&mc_eid=561ee916fc