Electricity May Flow Without Electrons

Note that in spite of the title, in those metals electricity flow with electrons. In normal methods it's easy to do the calculation if you imagine there are somewhat isolated "electrons", with the charge of one electron but with a different mass https://en.wikipedia.org/wiki/Effective_mass_(solid-state_ph...

In this metals it may be better to use another approximation, maybe slightly similar to a bose gas https://en.wikipedia.org/wiki/Bose_gas that still has atoms but they behave vert weirdly.

"Using the wire, Chen helped show that the metal it’s made from — and others like it — may carry electrical charge without electrons."