Simulating critical anion chemistry with indirect excitons

Krzysztof Myśliwy; Krzysztof Jachymski

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arXiv · 2401.06017

Simulating critical anion chemistry with indirect excitons

Krzysztof Myśliwy·Krzysztof Jachymski

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Abstract

We study the effect of geometric constraints on the formation of indirect excitonic complexes with excess charge by considering the problem of two identical electrons moving in half-space subject to mutual Coulomb repulsion and the Coulomb attraction to a heavy hole of charge $Z$ residing on a flat impenetrable surface. We find that $Z=1$ is the critical charge necessary for binding, as compared to $Z_c\approx0.911$ in the unconstrained system. This suggests that interlayer electron--hole systems may serve as a flexible and experimentally accessible platform to study electronic behavior close to the critical nuclear charge necessary for binding.

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Krzysztof Myśliwy, Krzysztof Jachymski. 2024-01-11. Simulating critical anion chemistry with indirect excitons. https://arxiv.org/abs/2401.06017

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