110 citations · 182 across the 6 of their papers we have counts for
6 papers
Application of the spectral element method to the solution of the multichannel Schrödinger equation
Andrea Simoni, Alexandra Viel, Jean-Michel Launay
We apply the spectral element method to the determination of scattering and bound states of the multichannel Schrödinger equation. In our approach the reaction coordinate is discre…
Feshbach resonances and weakly bound molecular states of boson-boson and boson-fermion NaK pairs
Alexandra Viel, Andrea Simoni
We study theoretically magnetically induced Feshbach resonances and near-threshold bound states in isotopic NaK pairs. Our calculations accurately reproduce Feshbach spectroscopy d…
Transition from molecular complex to quantum solvation in OCS(He)_N
F. Paesani, A. Viel, F. A. Gianturco +1
We present quantum calculations of the rotational energy levels and spectroscopic rotational constants of the linear OCS molecule in variable size clusters of 4He, using spectral e…
Structure and spectroscopy of doped helium clusters using quantum Monte Carlo techniques
Alexandra Viel, K. Birgitta Whaley
We present a comparative study of the rotational characteristics of various molecule-doped 4He clusters using quantum Monte Carlo techniques. The theoretical conclusions obtained f…
Efficient implementation of the Projection Operator Imaginary Time Spectral Evolution (POITSE) method for excited states
Patrick Huang, Alexandra Viel, K. Birgitta Whaley
We describe and systematically analyze new implementations of the Projection Operator Imaginary Time Spectral Evolution (POITSE) method for the Monte Carlo evaluation of excited st…
Importance Sampling in Rigid Body Diffusion Monte Carlo
Alexandra Viel, Mehul V. Patel, Parhat Niyaz +1
We present an algorithm for rigid body diffusion Monte Carlo with importance sampling, which is based on a rigorous short-time expansion of the Green's function for rotational moti…