| friedmann robertson walker | FRW | 105 | 20 | 1.000844 | 0901.0958,0901.0945,etc |
| post newtonian | PN | 297 | 7 | 2.005267 | 0901.2931,0901.3730,etc |
| loop quantum cosmology | LQC | 156 | 7 | 2.003866 | 0901.0010,0901.2861,etc |
| anti de sitter | AdS | 73 | 7 | 1.003361 | 0901.2488,0901.1121,etc |
| quantum field theory | QFT | 61 | 5 | 2.001305 | 0901.0933,0901.1119,etc |
| generalized uncertainty principle | GUP | 80 | 4 | 2.002561 | 0901.3829,0901.3358,etc |
| cient'ficos | CECS | 12 | 4 | 1.000172 | 0901.1153,0901.0737,etc |
| de sitter | dS | 113 | 4 | 2.00262 | 0901.0737,0901.1955,etc |
| kaluza klein | KK | 21 | 4 | 2.000789 | 0901.2676,0901.3879,etc |
| randall sundrum | RS | 35 | 4 | 1.000659 | 0901.2948,0901.3640,etc |
| dvali gabadadze porrati | DGP | 37 | 4 | 1.000927 | 0901.1314,0901.1773,etc |
| varying speed of light | VSL | 22 | 3 | 2.000645 | 0901.3191,0901.3827,etc |
| numerical relativity | NR | 77 | 3 | 2.000853 | 0901.2931,0901.4696,etc |
| effective one body | EOB | 48 | 3 | 2.001526 | 0901.2931,0901.2437,etc |
| stationary phase approximation | SPA | 5 | 3 | 1.00008 | 0901.2931,0901.4936,etc |
| parametrized post newtonian | PPN | 63 | 3 | 2.002578 | 0901.3730,0901.3511,etc |
| spatially homogeneous | SH | 12 | 3 | 1.000039 | 0901.0806,0901.0776,etc |
| arnowitt deser misner | ADM | 17 | 3 | 2.000777 | 0901.0278,0901.4730,etc |