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We review some recent progress on Lieb-Thirring inequalities, focusing on direct methods to kinetic estimates for orthonormal functions and applications for many-body quantum systems.

数学物理 · 物理学 2021-06-29 Phan Thành Nam

We prove a Strichartz inequality for a system of orthonormal functions, with an optimal behavior of the constant in the limit of a large number of functions. The estimate generalizes the usual Strichartz inequality, in the same fashion as…

偏微分方程分析 · 数学 2014-11-07 Rupert L. Frank , Mathieu Lewin , Elliott H. Lieb , Robert Seiringer

We establish some weighted $L^2$ inequalities for Fourier extension operators in the setting of orthonormal systems. In the process we develop a direct approach to such inequalities based on generalised Wigner distributions, complementing…

经典分析与常微分方程 · 数学 2025-06-12 Jonathan Bennett , Neal Bez , Susana Gutierrez , Shohei Nakamura , Itamar Oliveira

We improve the Lieb-Thirring type inequalities by Demuth, Hansmann and Katriel (J. Funct. Anal. 2009) for Schr\"odinger operators with complex-valued potentials. Our result involves a positive, integrable function. We show that in the…

谱理论 · 数学 2021-11-09 Sabine Bögli

We prove a Lieb-Thirring type inequality for potentials such that the associated Schr\"{o}dinger operator has a pure discrete spectrum made of an unbounded sequence of eigenvalues. This inequality is equivalent to a generalized…

数学物理 · 物理学 2007-05-23 Jean Dolbeault , Patricio Felmer , Michael Loss , Eric Paturel

We prove sharp Lieb-Thirring inequalities for Schroedinger operators with potentials supported on a hyperplane and we show how these estimates are related to Lieb-Thirring inequalities for relativistic Schroedinger operators.

数学物理 · 物理学 2007-11-27 Rupert L. Frank , Ari Laptev

In this article, we obtain the Strichartz estimate for the system of orthonormal functions associated with the special Hermite operator.

泛函分析 · 数学 2022-03-08 Shyam Swarup Mondal , Jitendriya Swain

Inequalities are derived for power sums of the real part and the modulus of the eigenvalues of a Schr\"odinger operator with a complex-valued potential.

数学物理 · 物理学 2007-05-23 Rupert L. Frank , Ari Laptev , Elliott H. Lieb , Robert Seiringer

We show that, under very general definitions of a kinetic energy operator $T$, the Lieb-Thirring inequalities for sums of eigenvalues of $T-V$ can be derived from the Sobolev inequality appropriate to that choice of $T$.

谱理论 · 数学 2017-08-23 Rupert L. Frank , Elliott H. Lieb , Robert Seiringer

We extend the Moser-Trudinger inequality of one function to systems of orthogonal functions. Our results are asymptotically sharp when applied to the collective behavior of eigenfunctions of Schr\"odinger operators on bounded domains.

偏微分方程分析 · 数学 2024-01-29 Rakesh Arora , Phan Thành Nam , Phuoc-Tai Nguyen

Interpolation inequalities in Triebel-Lizorkin-Lorentz spaces and Besov-Lorentz spaces are studied for both inhomogeneous and homogeneous cases. First we establish interpolation inequalities under quite general assumptions on the parameters…

泛函分析 · 数学 2021-09-17 Jaeseong Byeon , Hyunseok Kim , Jisu Oh

This is a brief review of Lieb-Thirring inequalities for eigenvalues of the Schroedinger operator and lower bounds for the quantum mechanical kinetic energy (and some generalizations) in R^n.

数学物理 · 物理学 2007-05-23 Elliott H. Lieb

This article improves the triangle inequality for complex numbers, using the Hermite-Hadamard inequality for convex functions. Then, applications of the obtained refinement are presented to include some operator inequalities. The operator…

泛函分析 · 数学 2022-04-19 Shigeru Furuichi , Mohammad Sababheh , Hamid Reza Moradi

We investigate Sobolev inequalities for several rough operators. We prove that several operators satisfy a pointwise bound by the Riesz potential applied to the gradient. From this inequality, we derive several new Sobolev-type inequalities…

经典分析与常微分方程 · 数学 2024-01-05 Cong Hoang , Kabe Moen , Carlos Pérez

This paper is devoted to improvements of Sobolev and Onofri inequalities. The additional terms involve the dual counterparts, i.e. Hardy-Littlewood-Sobolev type inequalities. The Onofri inequality is achieved as a limit case of Sobolev type…

偏微分方程分析 · 数学 2014-05-02 Jean Dolbeault , Gaspard Jankowiak

Following Eden and Foias we obtain a matrix version of a generalised Sobolev inequality in one-dimension. This allow us to improve on the known estimates of best constants in Lieb-Thirring inequalities for the sum of the negative…

偏微分方程分析 · 数学 2011-11-10 Jean Dolbeault , Ari Laptev , Michael Loss

We review here some recent results by the authors, and various coauthors, on (weak,super) Poincar\'e inequalities, transportation-information inequalities or logarithmic Sobolev inequality via a quite simple and efficient technique:…

概率论 · 数学 2010-01-13 Patrick Cattiaux , Arnaud Guillin

The Lieb-Thirring inequalities give a bound on the negative eigenvalues of a Schr\"odinger operator in terms of an $L^p$ norm of the potential. This is dual to a bound on the $H^1$-norms of a system of orthonormal functions. Here we extend…

数学物理 · 物理学 2019-12-19 Rupert L. Frank , Mathieu Lewin , Elliott H. Lieb , Robert Seiringer

We investigate the interactions of functional rearrangements with Prekopa-Leindler type inequalities. It is shown that that a general class of integral inequalities tighten on rearrangement to "isoperimetric" sets with respect to a relevant…

概率论 · 数学 2019-05-24 James Melbourne

In this paper, motivated by recent important works due to Frank-Lewin-Lieb-Seiringer \cite{FLLS} and Frank-Sabin \cite{frank-sabin-1}, we study the Strichartz inequality on torus with the orthonormal system input and obtain sharp estimates…

泛函分析 · 数学 2018-01-26 Shohei Nakamura
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