View Single Post
LagrangeEuler
#1
Feb15-13, 11:51 AM
P: 316
Energy function ##E=-S_1S_2##. I took ##J=1##. If spin are oriented paralel energy is negative. How could energy be negative?
Phys.Org News Partner Physics news on Phys.org
How did evolution optimize circadian clocks?
New webcast series brings cutting-edge physics talks to the world
High Flux Isotope Reactor named Nuclear Historic Landmark