| electromagnetic wave | 46 | 16 | 3.0 | 0.004411 | 1912.00946,1912.01740,etc |
| galaxy cluster | 30 | 11 | 2.2 | 0.004137 | 1912.02327,1912.05194,etc |
| black hole | 1456 | 181 | 8.083 | 0.004043 | 1912.00090,1912.00325,etc |
| scalar spectral index | 78 | 13 | 6.417 | 0.004037 | 1912.03882,1912.06655,etc |
| Einstein frame | 164 | 25 | 6.792 | 0.004012 | 1912.00378,1912.00792,etc |
| tensor perturbation | 127 | 25 | 5.125 | 0.003739 | 1912.00090,1912.00378,etc |
| curvature perturbation | 182 | 28 | 6.667 | 0.003657 | 1912.00090,1912.00475,etc |
| scalar field | 1064 | 156 | 6.845 | 0.003527 | 1912.00090,1912.00325,etc |
| slow-roll inflation | 56 | 14 | 4.231 | 0.003461 | 1912.00090,1912.00616,etc |
| power spectrum | 404 | 48 | 7.872 | 0.003411 | 1912.00090,1912.00475,etc |
| dark energy | 267 | 71 | 3.786 | 0.003262 | 1912.00090,1912.00616,etc |
| density contrast | 73 | 15 | 4.5 | 0.003132 | 1912.00677,1912.05583,etc |
| phase transition | 126 | 34 | 3.758 | 0.003113 | 1912.00767,1912.01971,etc |
| magnetic field | 229 | 28 | 7.148 | 0.00302 | 1912.00900,1912.01740,etc |
| Jordan frame | 84 | 15 | 5.929 | 0.002979 | 1912.01654,1912.02845,etc |
| dark matter | 307 | 83 | 3.732 | 0.002962 | 1912.00785,1912.01723,etc |
| massive scalar field | 54 | 17 | 2.875 | 0.002916 | 1912.00946,1912.01654,etc |
| deceleration parameter | 51 | 13 | 3.583 | 0.002872 | 1912.00601,1912.01723,etc |
| mass function | 66 | 13 | 5.167 | 0.002835 | 1912.03149,1912.05154,etc |
| Hawking radiation | 118 | 31 | 3.567 | 0.002705 | 1912.00767,1912.02192,etc |
| Weyl tensor | 144 | 26 | 5.68 | 0.002638 | 1912.00792,1912.00800,etc |
| critical point | 119 | 29 | 4.107 | 0.002611 | 1912.00470,1912.00767,etc |
| gauge field | 130 | 32 | 3.903 | 0.002591 | 1912.02192,1912.04636,etc |
| mode function | 132 | 13 | 10.917 | 0.002496 | 1912.05145,1912.06839,etc |
| physical state | 91 | 13 | 7.5 | 0.002484 | 1912.02556,1912.02922,etc |
| entanglement entropy | 182 | 19 | 7.667 | 0.002452 | 1912.01016,1912.08607,etc |
| matter Lagrangian | 32 | 15 | 2.214 | 0.002448 | 1912.00601,1912.01768,etc |
| dispersion relation | 89 | 19 | 3.444 | 0.002442 | 1912.00378,1912.00800,etc |
| scalar mode | 64 | 18 | 3.706 | 0.002418 | 1912.00090,1912.00601,etc |
| quasinormal mode | 72 | 13 | 5.75 | 0.002366 | 1912.05202,1912.05315,etc |
| cosmic string | 61 | 16 | 4.0 | 0.002315 | 1912.02922,1912.03164,etc |
| wave equation | 75 | 20 | 3.474 | 0.002297 | 1912.00325,1912.00792,etc |
| state parameter | 55 | 15 | 3.857 | 0.00226 | 1912.02327,1912.03897,etc |
| continuum limit | 54 | 11 | 4.2 | 0.002254 | 1912.02922,1912.05314,etc |
| equivalence principle | 44 | 18 | 2.235 | 0.002248 | 1912.01740,1912.04985,etc |
| luminosity distance | 112 | 26 | 4.44 | 0.002203 | 1912.00900,1912.02327,etc |
| initial condition | 350 | 92 | 3.835 | 0.0022 | 1912.00090,1912.00325,etc |
| neutron star | 251 | 52 | 4.863 | 0.002157 | 1912.00475,1912.00685,etc |
| tensor-to-scalar ratio | 94 | 23 | 3.955 | 0.002153 | 1912.00090,1912.00475,etc |
| primordial black hole | 67 | 24 | 2.87 | 0.002124 | 1912.00677,1912.00785,etc |
| massive particle | 54 | 17 | 3.25 | 0.002087 | 1912.00946,1912.03974,etc |
| Sitter space | 37 | 15 | 2.571 | 0.002075 | 1912.00090,1912.00800,etc |
| cosmological parameter | 82 | 27 | 2.462 | 0.00207 | 1912.00090,1912.01723,etc |
| primordial power spectrum | 46 | 14 | 3.308 | 0.002029 | 1912.00475,1912.05145,etc |
| hole spacetime | 27 | 12 | 2.364 | 0.002009 | 1912.05194,1912.06047,etc |
| energy momentum tensor | 78 | 23 | 3.318 | 0.001969 | 1912.00601,1912.00685,etc |
| wave function | 97 | 25 | 4.0 | 0.00195 | 1912.00325,1912.00792,etc |
| time delay | 71 | 14 | 3.923 | 0.001946 | 1912.01304,1912.04988,etc |
| Horndeski theory | 102 | 19 | 5.611 | 0.001937 | 1912.00378,1912.00475,etc |
| black hole entropy | 30 | 15 | 2.071 | 0.001923 | 1912.03897,1912.04547,etc |
| spatial slice | 42 | 13 | 3.417 | 0.001889 | 1912.00090,1912.02922,etc |
| electromagnetic field | 115 | 34 | 3.455 | 0.001888 | 1912.00357,1912.01740,etc |
| energy spectrum | 28 | 11 | 2.7 | 0.001884 | 1912.00900,1912.04932,etc |
| Lorentz transformation | 53 | 11 | 5.2 | 0.001869 | 1912.01016,1912.03164,etc |
| gravitational wave | 456 | 120 | 3.807 | 0.001839 | 1912.00325,1912.00378,etc |
| electromagnetic counterpart | 39 | 11 | 3.6 | 0.001836 | 1912.09340,1912.11667,etc |
| Friedmann equation | 119 | 45 | 2.682 | 0.001801 | 1912.00090,1912.00616,etc |
| event horizon | 284 | 69 | 4.059 | 0.001795 | 1912.00357,1912.00685,etc |
| coherent state | 76 | 13 | 5.833 | 0.001795 | 1912.04490,1912.06143,etc |
| partition function | 123 | 16 | 8.133 | 0.001792 | 1912.00767,1912.04656,etc |
| free energy | 50 | 12 | 4.455 | 0.001789 | 1912.00767,1912.02192,etc |
| apparent horizon | 49 | 12 | 4.273 | 0.001786 | 1912.03897,1912.05202,etc |
| Killing vector | 147 | 26 | 5.84 | 0.00176 | 1912.01016,1912.02498,etc |
| Killing horizon | 47 | 11 | 4.5 | 0.001753 | 1912.00774,1912.04636,etc |
| Maxwell field | 47 | 15 | 3.286 | 0.001753 | 1912.02192,1912.03897,etc |
| real part | 59 | 22 | 2.381 | 0.001749 | 1912.01869,1912.02192,etc |
| nonumber && | 77 | 21 | 3.8 | 0.001745 | 1912.01019,1912.01304,etc |
| scalar perturbation | 108 | 37 | 2.778 | 0.001744 | 1912.00090,1912.00378,etc |
| finite distance | 36 | 11 | 3.2 | 0.00174 | 1912.00946,1912.05154,etc |
| gravitational field | 201 | 66 | 3.046 | 0.001709 | 1912.00325,1912.00470,etc |
| Schwarzschild spacetime | 50 | 20 | 2.579 | 0.001683 | 1912.00774,1912.01301,etc |
| phase space | 303 | 52 | 5.431 | 0.001652 | 1912.00090,1912.00616,etc |
| string theory | 141 | 44 | 3.256 | 0.001637 | 1912.02192,1912.02922,etc |
| vector field | 296 | 69 | 4.265 | 0.001625 | 1912.00357,1912.01016,etc |
| scale factor | 352 | 86 | 4.129 | 0.00161 | 1912.00090,1912.00378,etc |
| black hole solution | 75 | 27 | 2.808 | 0.001572 | 1912.00378,1912.00946,etc |
| quantum theory | 126 | 33 | 3.906 | 0.001571 | 1912.00774,1912.02922,etc |
| finite temperature | 65 | 13 | 3.0 | 0.001564 | 1912.04656,1912.05202,etc |
| orbital plane | 30 | 11 | 2.8 | 0.00155 | 1912.04932,1912.06584,etc |
| Killing vector field | 79 | 22 | 3.714 | 0.001547 | 1912.02498,1912.03701,etc |
| path integral | 120 | 21 | 4.1 | 0.001524 | 1912.05154,1912.05194,etc |
| angular momentum | 338 | 87 | 3.837 | 0.001518 | 1912.00677,1912.00767,etc |
| expectation value | 135 | 38 | 3.622 | 0.001516 | 1912.00774,1912.00792,etc |
| topological defect | 33 | 12 | 2.909 | 0.001498 | 1912.02922,1912.03976,etc |
| Einstein equation | 251 | 78 | 3.247 | 0.001487 | 1912.00357,1912.00470,etc |
| general relativity | 527 | 132 | 4.015 | 0.001483 | 1912.00357,1912.00601,etc |
| compact object | 142 | 42 | 3.415 | 0.001471 | 1912.00325,1912.00677,etc |
| test particle | 128 | 35 | 3.588 | 0.00147 | 1912.00470,1912.00946,etc |
| first law | 126 | 19 | 4.556 | 0.001465 | 1912.00767,1912.01016,etc |
| central singularity | 30 | 12 | 2.636 | 0.001464 | 1912.00774,1912.02845,etc |
| field space | 55 | 18 | 3.059 | 0.001462 | 1912.00090,1912.00792,etc |
| initial datum | 135 | 29 | 4.786 | 0.001457 | 1912.00616,1912.00677,etc |
| slow-roll parameter | 92 | 22 | 4.238 | 0.001442 | 1912.00090,1912.00378,etc |
| integration constant | 87 | 25 | 3.5 | 0.001442 | 1912.00774,1912.00946,etc |
| naked singularity | 72 | 19 | 3.889 | 0.001437 | 1912.00470,1912.01301,etc |
| boson star | 35 | 11 | 3.1 | 0.001407 | 1912.01920,1912.02498,etc |
| inflaton field | 79 | 27 | 2.962 | 0.001399 | 1912.00090,1912.00616,etc |
| loop quantum gravity | 66 | 15 | 4.643 | 0.001378 | 1912.00774,1912.02459,etc |
| momentum constraint | 30 | 11 | 2.4 | 0.001368 | 1912.01301,1912.01768,etc |
| effective action | 128 | 25 | 5.25 | 0.001341 | 1912.00792,1912.00800,etc |
|