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Commutator Estimates and Quantitative Local Weyl's Law for Schr\"odinger Operators with Non-Smooth Potentials

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arxiv 2501.01381 v2 pith:NWCWL5IK submitted 2025-01-02 math-ph math.APmath.MPmath.SPquant-ph

classification math-phmath.APmath.MPmath.SPquant-ph
keywords operatorscasecommutatorestimateslocalodingerpotentialsquantitative
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abstract

We analyze semi-classical Schr\"odinger operators with potentials of class $C^{1,1/2}$ and establish commutator estimates for the associated projection operators in Schatten norms. These are then applied to prove quantitative versions of the local and phase space Weyl laws in $L^p$ spaces. We study both non-interacting, and interacting particle systems. In particular, we are able to treat the case of the minimizers of the Hartree energy in the case of repulsive singular pair interactions such as the Coulomb potential.

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Cited by 2 Pith papers

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  1. Derivation of the time-dependent Hartree equations for strongly interacting dense fermionic systems

    math-ph 2025-07 conditional novelty 8.0 of 10

    The rescaled Schrödinger dynamics of N dense fermions with C^2 pair interactions converges to the time-dependent Hartree dynamics with explicit rate N^{-1/24}.

  2. The quantitative semi-classical limit of a large Fermi system at zero temperature

    math-ph 2025-05 conditional novelty 6.0 of 10

    For three-dimensional interacting fermions at zero temperature, the ground-state Wigner function approaches Thomas-Fermi theory in trace norm at rate N times a positive power of the semi-classical parameter, with Coul...

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