 00254 Robert Seiringer
 On the maximal ionization of atoms in strong magnetic fields
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Jun 5, 00

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Abstract. We give upper bounds for the number of spin 1/2 particles that can be bound to a nucleus of charge $Z$ in the presence of a magnetic field $\B$, including the spinfield coupling. We use Lieb's strategy, which is known to yield $N_c<2Z+1$ for magnetic fields that go to zero at infinity, ignoring the spinfield interaction. For particles with fermionic statistics in a homogeneous magnetic field our upper bound has an additional term of order $Z\times\min\left\{(B/Z^3)^{2/5},1+\ln(B/Z^3)^2\right\}$.
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