125 citations · 479 across the 13 of their papers we have counts for
13 papers
Tuning biexciton binding and anti-binding in core/shell quantum dots
Peter G. McDonald, Edward J. Tyrrell, John Shumway +2
We use a path integral quantum Monte Carlo method to simulate excitons and biexcitons in core shell nanocrystals with Type-I, II and quasi-Type II band alignments. Quantum Monte Ca…
Effects of Fermion Flavor on Exciton Condensation in Double Layer Systems
J. Shumway, M. J. Gilbert
We use fermionic path integral quantum Monte Carlo to study the effects of fermion flavor on the physical properties of dipolar exciton condensates in double layer systems. We find…
Path Integral Calculations of the Hydrogen Hugoniot Using Augmented Nodes
Saad A. Khairallah, J. Shumway, Erik W. Draeger
We calculate the hydrogen Hugoniot using ab initio path integral Monte Carlo. We introduce an efficient finite-temperature fixed-node approximation for handling fermions, which inc…
Lateral spatial switching of excitons using vertical electric fields in semiconductor quantum rings
Peter G McDonald, John Shumway, Ian Galbraith
We study the response of exciton complexes in semiconductor quantum rings to vertical electric fields, using path integral quantum Monte Carlo simulations. The interaction of a ver…
FFLO vs Bose-Fermi mixture in polarized 1D Fermi gas on a Feshbach resonance: a 3-body study
Stefan K. Baur, John Shumway, Erich J. Mueller
We study the three-fermion problem within a 1D model of a Feshbach resonance in order to gain insight into how the FFLO-like state at small negative scattering lengths evolves into…
Path integral study of the role of correlation in exchange coupling of spins in double quantum dots and optical lattices
Lei Zhang, Matthew Gilbert, Jesper Pedersen +1
We explore exchange coupling of a pair of spins in a double dot and in an optical lattice. Our algorithm uses the frequency of exchanges in a bosonic path integral, evaluated with…