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← ScienceIn a magneto-optical trap used for cooling atoms which mechanism limits atomic density?
A)Ferromagnetic dipole-dipole interaction✓
B)Spontaneous parametric down-conversion
C)Blackbody radiation-induced ionization
D)Vacuum system outgassing limitation
💡 Explanation
The interaction between neighboring atomic dipole moments induces disruptive magnetic fields. This dipole-dipole interaction limits density because induced fields cause instability rather than tighter confinement. Therefore the packing density decreases instead of increases due to collisions.
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