Browsing by Author "KROTSCHECK, E."

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    • Inhomogeneous Broadening and the Kosterlitz-Thouless Transition 
      COLLINS, M.; Agnolet, Glenn; SASLOW, WM; KROTSCHECK, E. (American Physical Society, 1993)
      Torsional-oscillator studies of very thin He-4 films have found nonuniversal behavior of the superfluid response as a function of coverage. The temperature width of the superfluid transition region is nonmonotonic in the ...
    • Structure and Collective Excitations of He-4 Clusters 
      Chin, Siu A.; KROTSCHECK, E. (American Physical Society, 1992)
      We compute zero-temperature ground-state energies, one- and two-body densities, collective-excitation spectra, transition densities, and static and dynamic structure functions of He-4 clusters up to a cluster size of N = ...
    • Systematics of Pure and Doped He-4 Clusters 
      Chin, Siu A.; KROTSCHECK, E. (American Physical Society, 1995)
      Optimized variational calculations have been carried out for pure and doped clusters of He-4 atoms up to a cluster size of N=1000 particles. For small cluster sizes with less than or equal to 112 particles, where comparisons ...