Collective Excitations at Filling Factor 5/2 : The View from Superspace

Spin - isospin textured excitations in a double layer at filling factor ν = 2

We study the charged excitations of a double layer at filling factor 2 in the ferromagnetic regime. In a wide range of Zeeman and tunneling splittings we find that the low energy charged excitations are spin-isospin textures with the charge mostly located in one of the layers. As tunneling increases, the parent spin texture in one layer becomes larger and it induces, in the other layer, a shado...

Collective Intelligence: Filling the Insurance Talent Gap

Collective Excitations of Atomic Bose-Einstein Condensates.

We apply linear–response analysis of the Gross–Pitaevskii equation to obtain the excitation frequencies of a Bose–Einstein condensate confined in a time–averaged orbiting potential trap. Our calculated values are in excellent agreement with those observed in a recent experiment. PACS Numbers: 3.75.Fi, 67.40.Db, 67.90.+Z Typeset using REVTEX 1 The recent attainment of quantum degeneracy conditio...

Propagating collective excitations in molten salts

Longitudinal as well as transverse dynamics of a molten salt beyond the hydrodynamic region is studied within the generalized collective modes (GCM) approach. An analytical three-variable model is applied to the treatment of the coupled longand short-time charge fluctuations. Dispersion laws of propagating kinetic collective excitations such as optic phonon-like modes, heat and shear waves are ...

Generalized collective excitations in supercritical argon

Generalized collective excitations in supercritical argon Taras Bryk a b & Giancarlo Ruocco c d a Institute for Condensed Matter Physics, National Academy of Sciences of Ukraine, 1 Svientsitskii Street, 79011 Lviv, Ukraine b Institute of Applied Mathematics and Fundamental Sciences, National Technical University of Lviv, 79013 Lviv, Ukraine c Dipartimento di Fisica, Universita di Roma La Sapien...