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arXiv 2103.11896math-phmath.MPmath.SP
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Eigenvalue asymptotics for the one-particle density matrix

Alexander V. Sobolev

英文摘要:

The one-particle density matrix $γ(x, y)$ for a bound state of an atom or molecule is one of the key objects in the quantum-mechanical approximation schemes. We prove the asymptotic formula $λ_k \sim (Ak)^{-8/3}$, $A \ge 0$, as $k\to\infty$, for the eigenvalues $λ_k$ of the self-adjoint operator $\boldsymbolΓ\ge 0$ with kernel $γ(x, y)$.

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