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arXiv · 1707.09427

Stability of trions in coupled quantum wells modelled by two-dimensional bilayers

O. Witham·R. J. Hunt·N. D. Drummond
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Abstract

We report variational and diffusion quantum Monte Carlo calculations of the binding energies of indirect trions and biexcitons in ideal two-dimensional bilayer systems within the effective-mass approximation, and with a Coulomb $1/r$ interaction between charge carriers. The critical layer separation at which trions become unbound has been studied for various electron-hole mass ratios, and found to be over an order of magnitude larger than the critical layer separation for biexcitons.

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O. Witham, R. J. Hunt, N. D. Drummond. 2017-10-13. Stability of trions in coupled quantum wells modelled by two-dimensional bilayers. https://doi.org/10.1103/physrevb.97.075424

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