976 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR49 papers
- Technical University of DenmarkDK38 papers
- Aarhus UniversityDK29 papers
- University of CopenhagenDK23 papers
- Tokyo Institute of TechnologyJP19 papers
- University of ManchesterGB18 papers
- École Polytechnique Fédérale de LausanneCH17 papers
- University of OxfordGB16 papers
- Centre de Physique ThéoriqueFR14 papers
- East China Normal UniversityCN14 papers
- IMAR - Institutul de Matematică „Simion Stoilow” al Academiei RomâneRO14 papers
- Imperial College LondonGB14 papers
7 papers · 2 filters
Localised Wannier functions in metallic systems
Horia Cornean, David Gontier, Antoine Levitt +1
The existence and construction of exponentially localised Wannier functions for insulators is a well-studied problem. In comparison, the case of metallic systems has been much less…
Peierls' substitution for low lying spectral energy windows
Horia D. Cornean, Bernard Helffer, Radu Purice
We consider a magnetic Schrödinger operator perturbed by a weak magnetic field which slowly varies around a positive mean. In a previous paper we proved the appearance of a `L…
A mathematical account of the NEGF formalism
H. D. Cornean, V. Moldoveanu, C. -A. Pillet
The main goal of this paper is to put on solid mathematical grounds the so-called Non-Equilibrium Green's Function (NEGF) transport formalism for open systems. In particular, we de…
Parseval frames of exponentially localized magnetic Wannier functions
Horia D. Cornean, Domenico Monaco, Massimo Moscolari
Motivated by the analysis of gapped periodic quantum systems in presence of a uniform magnetic field in dimension , we study the possibility to construct spanning sets of…
On the spectral properties of Witten-Laplacians, their range projections and Brascamp-Lieb's inequality
Jon Johnsen
A study is made of an integral identity of Helffer and Sj{ö}strand, which for some class of probability measures yields a formula for the covariance of two functions (of a stochast…
On the construction of Wannier functions in topological insulators: the 3D case
Horia D. Cornean, Domenico Monaco
We investigate the possibility of constructing exponentially localized composite Wannier bases, or equivalently smooth periodic Bloch frames, for 3-dimensional time-reversal symmet…
On the existence of impurity bound excitons in one-dimensional systems with zero range interactions
Jonas Have, Hynek Kovarik, Thomas G. Pedersen +1
We consider a three-body one-dimensional Schrödinger operator with zero range potentials, which models a positive impurity with charge interacting with an exciton. We study…