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Rapidly rotating Bose-Einstein condensates∗ Alexander Fetter ...

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Hence TF wave function depends explicitly on Ω through<br />

the altered radial trap frequency ω⊥ 2 → ω2 ⊥ − )<br />

Ω2<br />

|Ψ(r, z)| 2 = n(0)<br />

(1 − r2<br />

− z2<br />

Rz<br />

2<br />

where<br />

R 2 ⊥ =<br />

2µ<br />

M(ω 2 ⊥ − Ω2 )<br />

R 2 ⊥<br />

and R 2 z = 2µ<br />

Mω 2 z<br />

• for pure harmonic trap, must have Ω < ω ⊥ to retain<br />

radial confinement<br />

• normalization ∫ dV |Ψ| 2 = N shows that<br />

( ) 2/5<br />

µ(Ω)<br />

µ(0) = 1 − Ω2<br />

ω⊥<br />

2<br />

in three dimensions<br />

• central density given by n(0) = µ(Ω)/g<br />

• n(0) decreases with increasing Ω because of reduced<br />

radial confinement<br />

22

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