Physicists Observe ‘Unobservable’ Quantum Phase Transition - Scientists have been able to not only entangle constellations of many particles simultaneously, but by measuring their state in a clever way, stochastically, use the measuring as a way to have some control over the entanglement, since measurement causes entanglement collapse. And by doing that they were able to explore the entire entanglement space. Similar to how many materials go through phase transitions, say from liquid water to solid ice, there appears to be phase transitions in the quantum world. The weird thing is that it's not a material per se it's literally a phase transition in information, where the information shared between two things undergoes an abrupt change. As well as cool science, it's a tale of multiple reasearch groups discovering each other and combining forces. The story mixes in quantum computers, entanglement entropy and even time crystals in what is defo one of the best science writeups I've read this year. www.quantamagazine.org #