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6 papers · 2 filters
Ground State and Charge Renormalization in a Nonlinear Model of Relativistic Atoms
Philippe Gravejat, Mathieu Lewin, Eric Sere
We study the reduced Bogoliubov-Dirac-Fock (BDF) energy which allows to describe relativistic electrons interacting with the Dirac sea, in an external electrostatic potential. The…
Mean field limit for bosons and infinite dimensional phase-space analysis
Ammari Zied, Nier Francis
This article proposes the construction of Wigner measures in the infinite dimensional bosonic quantum field theory, with applications to the derivation of the mean field dynamics.…
Random repeated interaction quantum systems
Laurent Bruneau, Alain Joye, Marco Merkli
We consider a quantum system S interacting sequentially with independent systems E_m, m=1,2,... Before interacting, each E_m is in a possibly random state, and each interaction is…
Anisotropic Lavine's formula and symmetrised time delay in scattering theory
Rafael Tiedra de Aldecoa
We consider, in quantum scattering theory, symmetrised time delay defined in terms of sojourn times in arbitrary spatial regions symmetric with respect to the origin. For potential…
Variational methods in relativistic quantum mechanics
Maria J. Esteban, Mathieu Lewin, Eric séré
This review is devoted to the study of stationary solutions of linear and nonlinear equations from relativistic quantum mechanics, involving the Dirac operator. The solutions are f…
A new approach to the modelling of local defects in crystals: the reduced Hartree-Fock case
Eric Cancès, Amélie Deleurence, Mathieu Lewin
This article is concerned with the derivation and the mathematical study of a new mean-field model for the description of interacting electrons in crystals with local defects. We w…