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
5 papers · 2 filters
Spectral deformation for two-body dispersive systems with e.g. the Yukawa potential
Matthias Engelmann, Morten Grud Rasmussen
We find an explicit closed formula for the 'th iterated commutator of arbitrary order between a Hamiltonian and a…
Local Spectral Deformation
M. Engelmann, J. S. Møller, M. G. Rasmussen
We develop an analytic perturbation theory for eigenvalues with finite multiplicities, embedded into the essential spectrum of a self-adjoint operator . We assume the existence…
On the optical properties of carbon nanotubes--Part I. A general formula for the dynamical optical conductivity
Morten Rasmussen, Benjamin Ricaud, Baptiste Savoie
This paper is the first one of a series of two articles in which we revisit the optical properties of single-walled carbon nanotubes (SWNT). Produced by rolling up a graphene sheet…
Peierls substitution and magnetic pseudo-differential calculus
Horia D. Cornean, Viorel Iftimie, Radu Purice
We revisit the celebrated Peierls-Onsager substitution employing the magnetic pseudo-differential calculus for weak magnetic fields with no spatial decay conditions, when the non-m…
On the construction of composite Wannier functions
Horia D. Cornean, Ira Herbst, Gheorghe Nenciu
We give a constructive proof for the existence of an -dimensional Bloch basis which is both smooth (real analytic) and periodic with respect to its -dimensional quasi-momenta…