Negative
Temperature
un
seel
.com · two-level system · population inversion · hotter than infinity
lower level
0
upper level
0
ratio N↑/N↓
0.00
temperature
+0 K
state
standby
lower energy level
upper energy level
pump (adds energy)
1/T = ∂S/∂E
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Un
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.com · Negative Temperature