Results 81 to 90 of about 428,741 (193)

Spin contribution to the ponderomotive force in a plasma

, 2010
The concept of a ponderomotive force due to the intrinsic spin of electrons is developed. An expression containing both the classical as well as the spin-induced ponderomotive force is derived.
A. P. Misra, D. Kremp, G. Brodin, L. M. Gorbunov, L. M. Gorbunov, M. Marklund, W. L. Kruer   +6 more
core   +1 more source

Semiclassical Description of Relativistic Spin without use of Grassmann variables and the Dirac equation

, 2012
We propose a relativistic particle model without Grassmann variables which, being canonically quantized, leads to the Dirac equation. Both $\Gamma$\,-matrices and the relativistic spin tensor are produced through the canonical quantization of the ...
A.A. Deriglazov, Bargmann, Barut, Barut, Berezin, Bjorken, Compton, Deriglazov, Deriglazov, Deriglazov, Deriglazov, Deriglazov, Dirac, Dirac, Foldy, Frenkel, Gavrilov, Gitman, Hanson, Hestenes, Jordan, Kudryashova, Newton, Pavsic, Pryce, Sakurai, Salesi, Schrödinger, Singh, Uhlenbeck, Unal, Van Meter   +31 more
core   +1 more source

Quantum mechanical calculation of electron spin

Open Physics, 2017
The classical and quantum mechanical methods are used respectively to calculate the electron spin. It is shown that the classical method cannot derive the correct magnetic moment value.
Zhao Hai-Long
doaj   +1 more source

Quantum and classical thermal correlations in the XY spin-1/2 chain

, 2010
We investigate pairwise quantum correlation as measured by the quantum discord as well as its classical counterpart in the thermodynamic limit of anisotropic XY spin-1/2 chains in a transverse magnetic field for both zero and finite temperatures ...
A. Auerbach, B. K. Chakrabarti, H. C. Guzman, J. I. Latorre, J. Maziero, L. C. Céleri, M. A. Nielsen, M. S. Sarandy, P. L. Taylor, P. M. Chaikin, R. M. Serra, U. Schollwöck, V. Vedral   +12 more
core   +1 more source

Spin and statistics in classical mechanics [PDF]

American Journal of Physics, 2004
The spin–statistics connection is obtained for classical particles. The connection holds within pseudomechanics, a theory of particle motion that extends classical physics to include anticommuting Grassmann variables, and that exhibits classical analogs of both spin and statistics.
openaire   +2 more sources

Magnetic boson peak in classical spin glasses

Physical Review Research
We revisited spin dynamics in archetypical classical spin-glass (SG) systems, such as Cu_{1−x}Mn_{x} (x=0.017, 0.034, and 0.067) dilute alloys and iron aluminosilicate glass, using a modern neutron scattering spectrometer with high neutron flux.
Maiko Kofu, Seiko Ohira-Kawamura, Naoki Murai, Rieko Ishii, Daigorou Hirai, Hiroshi Arima, Kenichi Funakoshi   +6 more
doaj   +1 more source

A kagome map of spin liquids from XXZ to Dzyaloshinskii–Moriya ferromagnet

Nature Communications, 2016
Spin systems on the frustrated kagome lattice exhibit classical and quantum spin liquids. Here, the authors present an anisotropic nearest-neighbour model with time-reversal symmetry which incorporates all known spin liquids, as well as promising chiral ...
Karim Essafi, Owen Benton, L.D.C. Jaubert   +2 more
doaj   +1 more source

From higher-spin gauge interactions to Compton amplitudes for root-Kerr

Journal of High Energy Physics
We develop massive higher-spin theory as a framework for describing dynamics of rotating compact objects, such as Kerr black holes. In this paper, we explore gauge interactions up to quartic order and corresponding Compton amplitudes of higher-spin ...
Lucile Cangemi, Marco Chiodaroli, Henrik Johansson, Alexander Ochirov, Paolo Pichini, Evgeny Skvortsov   +5 more
doaj   +1 more source

Are superparamagnetic spins classical?

, 2008
Effective giant spins of magnetic nanoparticles are considered classically in the conventional theory of superparamagnetism based on the Landau-Lifshitz-Langevin equation. However, microscopic calculations for a large spin with uniaxial anisotropy, coupled to the lattice via the simplest generic mechanism, show that the results of the conventional ...
openaire   +2 more sources

Spinning observables from field theory

Journal of High Energy Physics
We study observables in the scattering of classical, spinning objects using the KMOC formalism. In particular, we derive formulas to higher order in spin and one loop $$\mathcal{O}({G}^{2})$$ for the spin kick and momentum impulse.
Juan Pablo Gatica
doaj   +1 more source