342 citations · 1.4k across the 38 of their papers we have counts for
8 papers · 1 filter
Stochastic Variational Approach to Small Atoms and Molecules Coupled to Quantum Field Modes
Alexander Ahrens, Chenhang Huang, Matt Beutel +2
In this work, we present a stochastic variational calculation (SVM) of energies and wave functions of few particle systems coupled to quantum fields in cavity QED. The light-matter…
Two electrons in harmonic confinement coupled to light in a cavity
Chenhang Huang, Alexander Ahrens, Matthew Beutel +1
The energy and wave function of a harmonically confined two-electron system coupled to light is calculated by separating the wave functions of the relative and center of mass (CM)…
Coupled Maxwell and Time-Dependent Orbital Free Density Functional Calculations
Cody Covington, Justin Malave, Kalman Varga
Coupled Maxwell and time-dependent orbital-free calculations are implemented and tested to describe the interaction of electromagnetic waves and matter. The currents and induced fi…
Ground and Excited Exciton Polarons in Monolayer MoSe2
Thomas Goldstein, Yueh-Chun Wu, Shao-Yu Chen +4
Monolayer transition metal dichalcogenide semiconductors, with versatile experimentally accessible exciton species, offer an interesting platform for investigating the interaction…
Excited-State Trions in Two Dimensional Materials
Jun Jan, Kalman Varga
Using the complex scaling and the stabilization method combined with the stochastic variational approach, we have shown that there are narrow resonance states in two-dimensional th…
Controlled dynamic screening of excitonic complexes in 2D semiconductors
Andrey R. Klots, Benjamin Weintrub, Dhiraj Prasai +4
We report a combined theoretical/experimental study of dynamic screening of excitons in media with frequency-dependent dielectric functions. We develop an analytical model showing…
The biexciton puzzle
David K. Zhang, Daniel W. Kidd, Kálmán Varga
The Stochastic Variational Method (SVM) is used to show that the effective mass model correctly estimates the binding energies of excitons and trions, but fails to predict the expe…
Properties of few-electron artificial atoms
K. Varga, P. Navratil, J. Usukura +1
The spectra of quantum dots of different geometry (``quantum ring'', ``quantum cylinder'', ``spherical square-well'' and ``parabolic confinement'') are studied. The stochastic vari…