3 ms·
As others pointed out, there are two definitions of temprature, usually it is related to average energy per particle and formally it is T=dS/dE (S is the entro
by yk 14y ago
As others pointed out, there are two definitions of temprature, usually it is related to average energy per particle and formally it is T=dS/dE (S is the entropy, E the total emergy of the system).
What I do not understand, is why is this news? A negative emergy is not very uncommen, for example lasers have negative temperature.
- splat 14y agoI think the new part is that this is very close to absolute zero from the negative side instead of the positive side. It also seems the other interesting part is that the system transitions from positive to negative temperatures very suddenly.