39 citations · 101 across the 4 of their papers we have counts for
4 papers
Extending the Feynman variational principle and analytical methods to lattice polarons
S. N. Klimin, J. Tempere, M. Houtput +6
We develop and compare several analytical approximations for the ground state and zero-temperature polaron dispersion in finite-width, nonparabolic conduction bands. The main focus…
Diagrammatic Monte Carlo study of the Fröhlich polaron dispersion in 2D and 3D
T. Hahn, S. Klimin, J. Tempere +2
We present results for the solution of the large polaron Fröhlich Hamiltonian in 3-dimensions (3D) and 2-dimensions (2D) obtained via the Diagrammatic Monte Carlo (DMC) method. Our…
Microscopic mechanisms for the Fermi-liquid behavior of Nb-doped strontium titanate
S. N. Klimin, J. Tempere, D. van der Marel +1
The relaxation rate in Nb-doped strontium titanate involving different scattering channels is investigated theoretically. It is demonstrated that the total relaxation rate in SrTiO…
Vortices in Bose-Einstein condensates confined in a multiply connected Laguerre-Gaussian optical trap
J. Tempere, J. T. Devreese, E. R. I. Abraham
The quantized vortex state is investigated in a Bose-Einstein condensate, confined in a multiply connected geometry formed by a Laguerre-Gaussian optical trap. Solving the Gross-Pi…