Fourth State of Matter: Time Crystals

Physics Girl: BREAKING: New Phase of Matter. (YouTube, 15:34min) “What are time crystals? How do scientists make one on a quantum computer.”

See also these scientific papers:

Stanford News: Stanford physicists help create time crystals with quantum computers. “A team of researchers including ones from Stanford and Google have created and observed a new phase of matter, popularly known as a time crystal.” (Published November 30, 2021)

“In research published Nov. 30 in Nature, a team of scientists from Stanford University, Google Quantum AI, the Max Planck Institute for Physics of Complex Systems and Oxford University detail their creation of a time crystal using Google’s Sycamore quantum computing hardware.

“The big picture is that we are taking the devices that are meant to be the quantum computers of the future and thinking of them as complex quantum systems in their own right,” said Matteo Ippoliti, a postdoctoral scholar at Stanford and co-lead author of the work. “Instead of computation, we’re putting the computer to work as a new experimental platform to realize and detect new phases of matter.””, University of Hamburg: Researchers observe continuous time crystal. (Published June 10, 2022)

“Researchers from the Institute of Laser Physics at Universität Hamburg have succeeded for the first time in realizing a time crystal that spontaneously breaks continuous time translation symmetry. They report their observation in a study published online by the journal Science on Thursday, 9 June, 2022.”