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| | What Does Negative Temperature Mean? (Site not responding. Last check: 2007-10-12) |
 | | Notice that with this definition, E is zero when half of the spins are up and half are down. |
 | | So we have created a system where, as we add more and more energy, temperature starts off positive, approaches positive infinity as maximum entropy is approached, with half of all spins up. |
 | | After that, the temperature becomes negative infinite, coming down in magnitude toward zero, but always negative, as the energy increases toward maximum. |
| math.ucr.edu /home/baez/physics/ParticleAndNuclear/neg_temperature.html (1149 words) |
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