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Semiclassical Limit of the Bogoliubov-de Gennes Equation

Jacky J. Chong, Laurent Lafleche, Chiara Saffirio

23/3/24 Published in : arXiv:2403.15880

In this paper, we rewrite the time-dependent Bogoliubov–de Gennes equation in an appropriate semiclassical form and establish its semiclassical limit to a two-particle kinetic transport equation with an effective mean-field background potential satisfying the one-particle Vlasov equation. Moreover, for some semiclassical regimes, we obtain a higher-order correction to the two-particle kinetic transport equation, capturing a nontrivial two-body interaction effect. The convergence is proven for C^2 interaction potentials in terms of a semiclassical optimal transport pseudo-metric. Furthermore, combining our current results with the results of Marcantoni et al. [arXiv:2310.15280], we establish a joint semiclassical and mean-field approximation of the dynamics of a system of spin-\frac{1}{2} Fermions by the Vlasov equation in some negative order Sobolev topology.

Entire article

Phase I & II research project(s)

  • Quantum Systems

Phase III direction(s)

  • Differential equations of Mathematical Physics

New lower bounds for the (near) critical Ising and φ^4 models' two-point functions

WKB asymptotics of Stokes matrices, spectral curves and rhombus inequalities

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The National Centres of Competence in Research (NCCRs) are a funding scheme of the Swiss National Science Foundation

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