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Quantum Monte Carlo study of a positron in an electron gas.
| Content Provider | Semantic Scholar |
|---|---|
| Author | Drummond, Neil D. Ríos, Pablo López Needs, Richard J. Pickard, Chris J. |
| Copyright Year | 2011 |
| Abstract | Quantum Monte Carlo calculations of the relaxation energy, pair-correlation function, and annihilating-pair momentum density are presented for a positron immersed in a homogeneous electron gas. We find smaller relaxation energies and contact pair-correlation functions in the important low-density regime than predicted by earlier studies. Our annihilating-pair momentum densities have almost zero weight above the Fermi momentum due to the cancellation of electron-electron and electron-positron correlation effects. |
| Starting Page | 207402 |
| Ending Page | 207402 |
| Page Count | 1 |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://arxiv.org/pdf/1104.5441v1.pdf |
| Alternate Webpage(s) | http://eprints.lancs.ac.uk/52369/1/e207402.pdf |
| PubMed reference number | 22181773v1 |
| Volume Number | 107 |
| Issue Number | 20 |
| Journal | Physical review letters |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | Arabic numeral 0 Energy, Physics Femtometer Leucaena pulverulenta Monte Carlo Method Positrons Small density |
| Content Type | Text |
| Resource Type | Article |
