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20212026
most citedExistence of minimizers for the Dirac-Fock model of crystals

1 citations · 2 across the 7 of their papers we have counts for

collaborators

9 papers

math-ph2026

Approximate eigenfunctions for some aperiodic crystals

Long Meng

In this paper, we consider a broad class of continuum two-scale Hamiltonians \begin{align*} H_\varepsilon:=T(-i\nabla_x+\mathbf A(x,\varepsilon x))+V(x,\varepsilon x),\qquad x\in \…

math-ph2026

Eigenvalue asymptotics of Müller minimizers for atoms and molecules

Rupert L. Frank, Long Meng, Phan Thành Nam +1

We study the spectral properties of minimizers of the Müller functional for atoms and molecules with electrons and total nuclear charge . We prove that under some suitable a…

math.AP2023

Properties of periodic Dirac--Fock functional and minimizers

Isabelle Catto, Long Meng

Existence of minimizers for the Dirac--Fock model in crystals was recently proved by Paturel and Séré and the authors \cite{crystals} by a retraction technique due to Séré \cite{Se…

math.AP2023

Strichartz estimates for the half wave/Klein-Gordon and Dirac Equations on compact manifolds without boundary

Federico Cacciafesta, Elena Danesi, Long Meng

In this paper we study Strichartz estimates for the half wave, the half Klein-Gordon and the Dirac Equations on compact manifolds without boundary, proving in particular for each o…

math.AP2023

A rigorous justification of the Mittleman's approach to the Dirac--Fock model

Long Meng

In this paper, we study the relationship between the Dirac--Fock model and the electron-positron Hartree--Fock model. We justify the Dirac--Fock model as a variational approximatio…

math.AP2022★ 1 cited

Existence of minimizers for the Dirac-Fock model of crystals

Isabelle Catto, Long Meng, Eric Paturel +1

Whereas many different models exist in the mathematical and physics literature for ground states of non-relativistic crystals, the relativistic case has been much less studied and…

math.AP2022

Strichartz estimates for the Dirac equation on asymptotically flat manifolds

Federico Cacciafesta, Anne-Sophie de Suzzoni, Long Meng

In this paper we prove Strichartz estimates for the Dirac equation on asymptotically flat manifolds. The proof combines the weak dispersive estimates proved by the first two author…

math.AP2021

Large time well posedness for a Dirac--Klein-Gordon system

Federico Cacciafesta, Anne-Sophie de Suzzoni, Long Meng +1

In this paper we prove well posedness for a system coupling a nonlinear Dirac with a Klein-Gordon equation that represents a toy model for the Helium atom with relativistic correct…

nlin.PS2021★ 1 cited

Dirac Monopoles in Rogue Waves

L. -C. Zhao, L. -Z. Meng, Y. -H. Qin +2

We for the first time demonstrate that the widely existed nonlinear waves such as rogue waves, contain Dirac monopoles. We find that the density zeros of these nonlinear waves on a…