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  • 2202.13204

    Rights statement: © 2022 American Physical Society

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Quantum Monte Carlo Study of Positron Lifetimes in Solids

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Article number166403
<mark>Journal publication date</mark>14/10/2022
<mark>Journal</mark>Physical review letters
Issue number16
Number of pages6
Publication StatusPublished
<mark>Original language</mark>English


We present an analysis of positron lifetimes in solids with unprecedented depth. Instead of modeling correlation effects with density functionals, we study positron-electron wave functions with long-range correlations included. This gives new insight in understanding positron annihilation in metals, insulators, and semiconductors. By using a new quantum Monte Carlo approach for computation of positron lifetimes, an improved accuracy compared to previous computations is obtained for a representative set of materials when compared with experiment. Thus, we present a method without free parameters as a useful alternative to the already existing methods for modeling positrons in solids.

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© 2022 American Physical Society