556 citations
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7 papers · 1 filter
Metric operators for non-Hermitian quadratic su(2) Hamiltonians
Paulo E. G. Assis
A class of non-Hermitian quadratic su(2) Hamiltonians having an anti-linear symmetry is constructed. This is achieved by analysing the possible symmetries of such systems in terms…
Relative Invariants, Ideal Classes and Quasi-Canonical Modules of Modular Rings of Invariants
Peter Fleischmann, Chris Woodcock
We describe "quasi canonical modules" for modular invariant rings of finite group actions on factorial Gorenstein domains. From this we derive a general "quasi Gorenstein crite…
A collision in 2009 as the origin of the debris trail of asteroid P/2010 A2
Colin Snodgrass, Cecilia Tubiana, Jean-Baptiste Vincent +15
The peculiar object P/2010 A2 was discovered by the LINEAR near-Earth asteroid survey in January 2010 and given a cometary designation due to the presence of a trail of material, a…
Real space investigation of structural changes at the metal-insulator transition in VO2
Serena A. Corr, Daniel P. Shoemaker, Brent C. Melot +1
Synchrotron X-ray total scattering studies of structural changes in rutile VO2 at the metal-insulator transition temperature of 340 K reveal that monoclinic and tetragonal phases o…
Relativistic analysis of the pairing symmetry of the noncentrosymmetric superconductor LaNiC
Jorge Quintanilla, Adrian D. Hillier, James F. Annett +1
We present a relativistic symmetry analysis of the allowed pairing states in the noncentroymmetric superconductor LaNiC. The case of zero spin-orbit coupling (SOC) is discussed…
Stability and convergence in discrete convex monotone dynamical systems
Marianne Akian, Stephane Gaubert, Bas Lemmens
We study the stable behaviour of discrete dynamical systems where the map is convex and monotone with respect to the standard positive cone. The notion of tangential stability for…