I know nothing about this stuff but this caught my eye: “The challenge is that it’s very difficult to build artificial structures small enough to trap and cont

I know nothing about this stuff but this caught my eye: “The challenge is that it’s very difficult to build artificial structures small enough to trap and control single electrons without destroying their long storage times,” said David Zajac, a graduate student in physics at Princeton and first-author on the study. “This is the first demonstration of entanglement between two electron spins in silicon, a material known for providing one of the cleanest environments for electron spin states.” Electrides like Calcium Aluminate Electride can readily trap individual electrons. And it is stable at room temperatures.