| Acronym | Meaning |
| GFQMC | Green Function Quantum Monte Carlo |
| VPSSQM | Variable-phase Supersymmetric Quantum Mechanics |
| RMTO | Relativistic Muffin-tin Orbital |
| MCA | Manufacturing Chemist Association |
| CTC | Charge-transfer Complex |
| TPPE | Two-photon Photoemission |
| SHM | Screened Hydrogenic Model (for Electronic Structure In Plasmas) |
| APA | Air Pathway Analysis |
| ICT | Intramol. Charge Transfer |
| PEANUT | Phase-inverted Echo-amplitude Detected Nutation |