| apparent horizon | 152 | 17 | 8.625 | 0.005783 | 1609.01868,1609.06586,etc |
| dispersion relation | 108 | 15 | 7.429 | 0.005701 | 1609.08580,1609.02007,etc |
| test particle | 123 | 25 | 4.5 | 0.005094 | 1609.07814,1609.01824,etc |
| classical field | 38 | 12 | 3.182 | 0.005041 | 1609.04013,1609.04418,etc |
| black hole | 1413 | 150 | 9.389 | 0.004561 | 1609.02564,1609.07921,etc |
| black hole entropy | 73 | 13 | 6.0 | 0.003734 | 1609.04036,1609.06318,etc |
| Killing vector field | 40 | 11 | 3.8 | 0.003677 | 1609.04013,1609.06168,etc |
| energy momentum tensor | 49 | 23 | 2.091 | 0.003085 | 1609.07814,1609.07787,etc |
| gravitational wave | 290 | 77 | 3.789 | 0.002962 | 1609.06766,1609.06318,etc |
| conformal symmetry | 46 | 11 | 4.5 | 0.002916 | 1609.01287,1609.02406,etc |
| Hubble rate | 51 | 15 | 3.429 | 0.002848 | 1609.00700,1609.00848,etc |
| time scale | 108 | 30 | 3.69 | 0.002751 | 1609.04770,1609.04036,etc |
| scalar field | 920 | 159 | 5.696 | 0.002647 | 1609.02564,1609.07921,etc |
| Hawking radiation | 137 | 26 | 5.28 | 0.002632 | 1609.04036,1609.06318,etc |
| expectation value | 107 | 34 | 3.152 | 0.002628 | 1609.09828,1609.04036,etc |
| quantum field | 71 | 25 | 2.708 | 0.002527 | 1609.07921,1609.04036,etc |
| entanglement entropy | 375 | 19 | 16.944 | 0.002514 | 1609.04036,1609.06318,etc |
| equatorial plane | 96 | 23 | 4.318 | 0.002499 | 1609.07921,1609.00901,etc |
| critical point | 92 | 22 | 4.333 | 0.002432 | 1609.02564,1609.06535,etc |
| electromagnetic field | 113 | 34 | 2.727 | 0.002389 | 1609.06766,1609.07921,etc |
| gravitational radiation | 113 | 28 | 4.148 | 0.002372 | 1609.01735,1609.02110,etc |
| dark energy | 276 | 58 | 4.807 | 0.002371 | 1609.07921,1609.09828,etc |
| Hilbert space | 213 | 31 | 7.067 | 0.002351 | 1609.09828,1609.04036,etc |
| Einstein frame | 60 | 11 | 5.8 | 0.002288 | 1609.01824,1609.00700,etc |
| Lagrange multiplier | 53 | 19 | 2.833 | 0.002274 | 1609.06766,1609.04418,etc |
| general relativity | 415 | 107 | 3.896 | 0.002224 | 1609.06766,1609.07921,etc |
| loop quantum gravity | 70 | 21 | 3.45 | 0.002196 | 1609.01540,1609.02219,etc |
| neutron star | 85 | 24 | 3.652 | 0.002185 | 1609.01868,1609.07465,etc |
| first law | 108 | 23 | 4.864 | 0.002171 | 1609.02564,1609.07992,etc |
| phase transition | 143 | 28 | 5.111 | 0.002155 | 1609.02564,1609.07992,etc |
| angular momentum | 261 | 66 | 3.985 | 0.002107 | 1609.07921,1609.04036,etc |
| gauge condition | 47 | 14 | 3.538 | 0.002106 | 1609.06925,1609.01056,etc |
| electric field | 73 | 25 | 2.958 | 0.002078 | 1609.07992,1609.06931,etc |
| impact parameter | 57 | 17 | 3.375 | 0.002063 | 1609.00802,1609.00354,etc |
| quantum field theory | 198 | 59 | 3.379 | 0.002048 | 1609.04036,1609.04813,etc |
| dark matter | 188 | 51 | 3.7 | 0.002039 | 1609.07921,1609.09828,etc |
| massless particle | 47 | 19 | 2.556 | 0.00203 | 1609.00714,1609.08631,etc |
| perfect fluid | 69 | 29 | 2.429 | 0.001989 | 1609.00700,1609.01868,etc |
| string theory | 143 | 57 | 2.482 | 0.001984 | 1609.02564,1609.04036,etc |
| Hawking temperature | 57 | 24 | 2.348 | 0.00196 | 1609.04036,1609.07992,etc |
| Einstein field equation | 68 | 29 | 2.393 | 0.001954 | 1609.07814,1609.09177,etc |
| scale factor | 329 | 80 | 4.038 | 0.001795 | 1609.09828,1609.04770,etc |
| saddle point | 49 | 13 | 3.917 | 0.001777 | 1609.04813,1609.00732,etc |
| Poisson bracket | 65 | 14 | 4.923 | 0.001775 | 1609.06766,1609.04812,etc |
| stress-energy tensor | 72 | 30 | 2.379 | 0.001767 | 1609.01735,1609.09177,etc |
| light ray | 43 | 14 | 3.231 | 0.001757 | 1609.00802,1609.01725,etc |
| density perturbation | 48 | 17 | 2.75 | 0.001748 | 1609.01126,1609.09398,etc |
| geodesic equation | 84 | 24 | 3.609 | 0.001727 | 1609.07814,1609.07992,etc |
| Hamiltonian constraint | 156 | 21 | 7.7 | 0.001727 | 1609.07703,1609.06925,etc |
| phase space | 77 | 25 | 3.167 | 0.001714 | 1609.06766,1609.04036,etc |
| gauge field | 197 | 37 | 5.444 | 0.001707 | 1609.06535,1609.09514,etc |
| event horizon | 187 | 61 | 3.067 | 0.001705 | 1609.07814,1609.01868,etc |
| Riemann tensor | 88 | 36 | 2.457 | 0.001671 | 1609.07814,1609.06318,etc |
| massless field | 60 | 13 | 4.917 | 0.001666 | 1609.09514,1609.00732,etc |
| initial datum | 210 | 35 | 6.059 | 0.001663 | 1609.06766,1609.01735,etc |
| conformal factor | 80 | 23 | 3.591 | 0.001652 | 1609.01824,1609.01868,etc |
| Killing vector | 83 | 35 | 2.382 | 0.001633 | 1609.07921,1609.04036,etc |
| Einstein equation | 290 | 86 | 3.376 | 0.00162 | 1609.09828,1609.07814,etc |
| energy-momentum tensor | 183 | 59 | 3.103 | 0.0016 | 1609.07814,1609.07787,etc |
| spectral index | 47 | 11 | 4.6 | 0.001598 | 1609.09243,1609.04953,etc |
| inertial frame | 31 | 11 | 3.0 | 0.001597 | 1609.06931,1609.02110,etc |
| extra dimension | 42 | 17 | 2.062 | 0.001593 | 1609.07787,1609.09177,etc |
| wave function | 101 | 22 | 4.571 | 0.001559 | 1609.00700,1609.09721,etc |
| imaginary part | 79 | 31 | 2.6 | 0.001547 | 1609.09828,1609.06925,etc |
| state parameter | 54 | 20 | 2.684 | 0.001526 | 1609.07921,1609.09243,etc |
| boundary condition | 313 | 76 | 4.16 | 0.001521 | 1609.04036,1609.01735,etc |
| Bianchi identity | 59 | 21 | 2.9 | 0.001515 | 1609.03288,1609.01126,etc |
| initial condition | 305 | 81 | 3.763 | 0.001512 | 1609.09828,1609.04770,etc |
| tensor-to-scalar ratio | 29 | 12 | 2.455 | 0.001505 | 1609.09243,1609.04953,etc |
| curvature tensor | 26 | 12 | 2.273 | 0.001504 | 1609.07814,1609.06383,etc |
| complex scalar field | 42 | 15 | 2.643 | 0.001503 | 1609.01735,1609.00901,etc |
| total angular momentum | 27 | 11 | 2.4 | 0.001495 | 1609.09721,1609.06586,etc |
| field equation | 296 | 90 | 3.303 | 0.001492 | 1609.02564,1609.07814,etc |
| black hole solution | 73 | 29 | 2.536 | 0.001492 | 1609.02564,1609.07814,etc |
| energy density | 332 | 90 | 3.708 | 0.001492 | 1609.09828,1609.09177,etc |
| hole solution | 52 | 15 | 3.5 | 0.001477 | 1609.01056,1609.03430,etc |
| effective field theory | 60 | 19 | 3.278 | 0.001473 | 1609.04036,1609.08507,etc |
| gravitational field | 175 | 59 | 3.0 | 0.001467 | 1609.06766,1609.02564,etc |
| wave equation | 120 | 23 | 5.409 | 0.00144 | 1609.01868,1609.06925,etc |
| curvature perturbation | 68 | 16 | 4.333 | 0.001426 | 1609.06318,1609.02556,etc |
| cosmological horizon | 41 | 18 | 2.353 | 0.00142 | 1609.04013,1609.06931,etc |
| vector field | 169 | 47 | 3.652 | 0.001394 | 1609.07814,1609.01735,etc |
| density matrix | 124 | 15 | 8.643 | 0.001392 | 1609.04036,1609.01540,etc |
| electric charge | 63 | 23 | 2.818 | 0.00138 | 1609.09177,1609.00901,etc |
| Bekenstein-Hawking entropy | 38 | 14 | 2.846 | 0.001373 | 1609.04036,1609.01208,etc |
| Schwarzschild solution | 48 | 16 | 3.133 | 0.00137 | 1609.07921,1609.07465,etc |
| free energy | 77 | 11 | 7.6 | 0.001369 | 1609.06535,1609.02167,etc |
| metric perturbation | 110 | 21 | 5.2 | 0.001349 | 1609.06925,1609.03613,etc |
| classical solution | 28 | 14 | 2.077 | 0.001348 | 1609.01208,1609.00732,etc |
| circular orbit | 68 | 16 | 4.067 | 0.001339 | 1609.07921,1609.00901,etc |
| naked singularity | 59 | 18 | 3.235 | 0.001324 | 1609.07814,1609.01868,etc |
| high redshift | 52 | 13 | 4.25 | 0.001322 | 1609.09377,1609.08093,etc |
| conjugate momentum | 35 | 13 | 2.667 | 0.001305 | 1609.04770,1609.06931,etc |
| matter field | 179 | 66 | 2.708 | 0.001293 | 1609.07787,1609.01735,etc |
| line element | 113 | 49 | 2.333 | 0.00129 | 1609.02564,1609.06318,etc |
| inflaton field | 44 | 18 | 2.471 | 0.001287 | 1609.07921,1609.09243,etc |
| Dirac equation | 46 | 11 | 4.5 | 0.001279 | 1609.00798,1609.06249,etc |
| nonumber & | 86 | 28 | 3.0 | 0.001275 | 1609.04036,1609.06794,etc |
| power spectrum | 176 | 34 | 4.545 | 0.001273 | 1609.04770,1609.03656,etc |
| quantum gravity | 220 | 72 | 3.085 | 0.001272 | 1609.04036,1609.00700,etc |
|