Results 21 to 30 of about 65,954 (297)

Collective dipole excitations in sodium clusters [PDF]

, 2011
Some properties of small and medium sodium clusters are described within the RPA approach using a projected spherical single particle basis. The oscillator strengths calculated with a Schiff-like dipole transition operator and folded with Lorentzian ...
A. A. Raduta, Al. H. Raduta, G. Galli, R. Budaca, S. G. Nilsson   +4 more
core   +2 more sources

Collective excitations of massive flavor branes

Nuclear Physics B, 2016
We study the intersections of two sets of D-branes of different dimensionalities. This configuration is dual to a supersymmetric gauge theory with flavor hypermultiplets in the fundamental representation of the gauge group which live on the defect of the
Georgios Itsios, Niko Jokela, Alfonso V. Ramallo   +2 more
doaj   +1 more source

Damping Rates and Mean Free Paths of Soft Fermion Collective Excitations in a Hot Fermion-Gauge-Scalar Theory [PDF]

, 2000
We study the transport coefficients, damping rates and mean free paths of soft fermion collective excitations in a hot fermion-gauge-scalar plasma with the goal of understanding the main physical mechanisms that determine transport of chirality in ...
A. Dolgov, A. G. Cohen, A. G. Cohen, A. G. Cohen, A. G. Cohen, A. Niemi, A. Riotto, D. Boyanovsky, D. Boyanovsky, D. Boyanovsky, D. Boyanovsky, D. Boyanovsky, D. Boyanovsky, D. Boyanovsky, D. Boyanovsky, D. Boyanovsky, D. Boyanovsky, D. Boyanovsky, D. Metaxas, D.-S. Lee, E. Braaten, E. Braaten, E. Braaten, E. Calzetta, E. Calzetta, E. Weinberg, F. Flechsig, G. D. Moore, G. Farrar, G. R. Farrar, G. R. Farrar, H. A. Weldon, H. A. Weldon, H. A. Weldon, H. A. Weldon, H. Davoudiasl, H. J. de Vega, J. C. Taylor, J. Frenkel, J. I. Kapusta, J. P. Paz, J. P. Paz, J. Schwinger, J.-P. Blaizot, J.-P. Blaizot, J.-P. Blaizot, K. Chou, K. T. Mahanthappa, L. V. Keldysh, M. Carena, M. E. Shaposhnikov, M. Joyce, M. Joyce, M. Joyce, M. Joyce, M. Joyce, M. Le Bellac, N. P. Landsmann, N. Turok, O. K. Kalashnikov, P. M. Bakshi, R. Baier, R. D. Pisarski, R. D. Pisarski, R. D. Pisarski, R. D. Pisarski, R. D. Pisarski, R. D. Pisarski, R. D. Pisarski, S. Peigné, S.-Y. Wang, T. Holopainen, U. Heinz, U. Heinz, U. Kraemmer, V. A. Kuzmin, V. A. Rubakov, V. V. Klimov, Y. J. Ng   +78 more
core   +3 more sources

Unveiling the bosonic nature of an ultrashort few-electron pulse

Nature Communications, 2018
Electronic excitations in low-dimensional quantum nanoelectronic devices are collective waves that are strongly affected by the Coulomb interaction. Here, the authors demonstrate that they are able to prepare these collective excitations down to the ...
Gregoire Roussely, Everton Arrighi, Giorgos Georgiou, Shintaro Takada, Martin Schalk, Matias Urdampilleta, Arne Ludwig, Andreas D. Wieck, Pacome Armagnat, Thomas Kloss, Xavier Waintal, Tristan Meunier, Christopher Bäuerle   +12 more
doaj   +1 more source

Coherent propagation of spin-orbit excitons in a correlated metal

npj Quantum Materials, 2023
Collective excitations such as plasmons and paramagnons are fingerprints of atomic-scale Coulomb and exchange interactions between conduction electrons in metals.
Valentin Zimmermann, Arvind Kumar Yogi, Deniz Wong, Christian Schulz, Maciej Bartkowiak, Klaus Habicht, Lichen Wang, Masahiko Isobe, Matteo Minola, Giniyat Khaliullin, Bernhard Keimer, Matthias Hepting   +11 more
doaj   +1 more source

A unified field theory of topological defects and non-linear local excitations

npj Computational Materials, 2023
Topological defects and smooth excitations determine the properties of systems showing collective order. We introduce a generic non-singular field theory that comprehensively describes defects and excitations in systems with O(n) broken rotational ...
Vidar Skogvoll, Jonas Rønning, Marco Salvalaglio, Luiza Angheluta   +3 more
doaj   +1 more source

Instability of insulating states in optical lattices due to collective phonon excitations

, 2015
The role of collective phonon excitations on the properties of cold atoms in optical lattices is investigated. These phonon excitations are collective excitations, whose appearance is caused by intersite atomic interactions correlating the atoms, and ...
A. A. Abrikosov, C. Moseley, C. W. Gardiner, F. A. Lindemann, G. Leibfried, G. Pupillo, H. Böttger, J. A. Reissland, J. M. Ziman, K. Ziegler, R. Blinc, R. Guyer, V. I. Yukalov, V. Letokhov, W. Horsthemke   +14 more
core   +1 more source

PROPAGATING COLLECTIVE EXCITATIONS IN MOLTEN SALTS

Condensed Matter Physics, 2003
Longitudinal as well as transverse dynamics of a molten salt beyond the hydrodynamic region is studied within the generalized collective modes (GCM) approach.
T.Bryk, I.Mryglod
doaj   +1 more source

COLLECTIVE EXCITATIONS IN ALPHA-HELICAL PROTEIN MOLECULE

Российский технологический журнал, 2018
Continuous energy supply, a necessary condition for life, excites a state far from thermodynamic equilibrium, in particular coherent electric polar vibrations depending on water ordering in the cell.
V. N. Kadantsev, A. N. Goltsov
doaj   +1 more source

Dispersion and Damping of Phononic Excitations in Fermi Superfluid Gases in 2D

Condensed Matter, 2020
We calculate the sound velocity and the damping rate of the collective excitations of a 2D fermionic superfluid in a non-perturbative manner. Specifically, we focus on the Anderson−Bogoliubov excitations in the BEC-BCS crossover regime, as these ...
Lars-Paul Lumbeeck, Jacques Tempere, Serghei Klimin   +2 more
doaj   +1 more source