A quantum entanglement happens when microscopic objects, like electrons and atoms, coordinate with each other, which makes them lose their individuality in the process. This process may be considered as the most delicate and fragile of all processes, as a tiny disturbance will undo this entanglement. With this being the case, scientists do their very best in isolating the microscopic systems they work with, and usually operate on temperatures close to absolute zero. But what happens when you heat up a bunch of atoms? This is what researchers from The Institute of Photonic Sciences (ICFO) tried, and they were surprised at what happened next: they were able to observe about 100 times more entangled atoms than observed before.
More details about this over at PHYS.org.
(Image Credit: ICFO/ PHYS.org)