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4 papers · 1 filter
Theoretical description of high-order harmonic generation in solids
A. F. Kemper, B. Moritz, J. K. Freericks +1
We consider several aspects of high-order harmonic generation in solids: the effects of elastic and inelastic scattering; varying pulse characteristics; and inclusion of material-s…
Torsional oscillator and synchrotron x-ray experiments on solid 4He in aerogel
N. Mulders, J. T. West, M. H. W. Chan +3
X-ray diffraction experiments show that solid 4He grown in aerogel is highly polycrystalline, with a hcp crystal structure (as in bulk) and a crystallite size of approximately 100…
Globally Anisotropic High Porosity Silica Aerogels
J. Pollanen, K. Shirer, S. Blinstein +5
We discuss two methods by which high porosity silica aerogels can be engineered to exhibit global anisotropy. First, anisotropy can be introduced with axial strain. In addition, in…
Spin precession and alternating spin polarization in spin-3/2 hole systems
Dimitrie Culcer, C. Lechner, R. Winkler
The spin density matrix for spin-3/2 hole systems can be decomposed into a sequence of multipoles which has important higher-order contributions beyond the ones known for electron…