- #1
Hamal_Arietis
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Homework Statement
Scientists want to trap the supercooled atoms (atoms have low thermal energy). They create an electric field by the interference of some laser beams. In the center of the trap, the electric field has fomula:
[tex]\vec{E(x)}=E_0(1-\frac{x^2}{x_0^2})\vec{e_z}[/tex]
With values: [tex]E_0=5000V/m;x_0=5\mu m[/tex]
At t=0, a Rubidi atom [tex]^{87}_{37} Rb[/tex] moves along x-axis with velocity [tex]v=0.1mm/s[/tex]
When atom goes to coordinates x=0, the trap is turned on. Consider architecture of Rb that a balloon has a nuclear which is covered by electron cloud (Rutherford's model). Supposed that in electric field, electron cloud isn't transfigured, but nuclear and central point of electron cloud are moved. So that dipole moment isn't equal 0.
With R=2.5A and these values, describe the motion of Rb. Find the maxcimum velocity of atom that it is trapped when the trap is turned on.
Homework Equations
F=qE
The Attempt at a Solution
I don't have any attempt in this problem because there are any force along x-axis, the force just appears along z-axis. And I don't understand this phenomenon. At first, I think the atom will oscillate but it is wrong!
Sorry because my English isn't good. I will pleasure if you check my mistake.
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