| dark energy | 425 | 57 | 7.571 | 0.004697 | 0904.3566,0904.4554,etc |
| black hole | 694 | 85 | 8.25 | 0.003969 | 0904.0141,0904.3377,etc |
| scalar field | 558 | 92 | 5.901 | 0.003797 | 0904.1698,0904.4554,etc |
| dark matter | 190 | 27 | 7.269 | 0.003686 | 0904.3566,0904.3445,etc |
| quantum fluctuation | 95 | 24 | 4.087 | 0.003576 | 0904.4554,0904.3217,etc |
| vacuum energy | 117 | 28 | 4.296 | 0.00347 | 0904.4554,0904.3445,etc |
| magnetic field | 128 | 21 | 6.3 | 0.003265 | 0904.3377,0904.4554,etc |
| event horizon | 241 | 44 | 5.535 | 0.003054 | 0904.3566,0904.3377,etc |
| Einstein tensor | 54 | 20 | 2.789 | 0.002953 | 0904.4473,0904.3566,etc |
| metric function | 78 | 25 | 3.167 | 0.002888 | 0904.2321,0904.3377,etc |
| coincidence problem | 62 | 14 | 4.615 | 0.002833 | 0904.3445,0904.1577,etc |
| state parameter | 62 | 17 | 3.812 | 0.00281 | 0904.3566,0904.4554,etc |
| phase transition | 56 | 16 | 3.667 | 0.002755 | 0904.0829,0904.1775,etc |
| dark energy model | 38 | 16 | 2.467 | 0.002703 | 0904.3445,0904.2950,etc |
| Hawking radiation | 75 | 19 | 4.111 | 0.002613 | 0904.0141,0904.3377,etc |
| Hamiltonian constraint | 32 | 11 | 2.4 | 0.002546 | 0904.0422,0904.0573,etc |
| Hawking temperature | 63 | 15 | 4.357 | 0.002478 | 0904.0141,0904.3377,etc |
| naked singularity | 53 | 11 | 4.8 | 0.002453 | 0904.3377,0904.1775,etc |
| general relativity | 352 | 81 | 4.325 | 0.002448 | 0904.0141,0904.0469,etc |
| quantum gravity | 168 | 55 | 3.056 | 0.002432 | 0904.1698,0904.3217,etc |
| imaginary part | 44 | 12 | 3.909 | 0.002413 | 0904.3377,0904.4295,etc |
| gravitational wave | 246 | 41 | 4.975 | 0.002364 | 0904.0469,0904.1986,etc |
| black hole solution | 37 | 16 | 2.4 | 0.002271 | 0904.2042,0904.0784,etc |
| effective theory | 33 | 11 | 3.2 | 0.002221 | 0904.0934,0904.0472,etc |
| boundary condition | 154 | 34 | 4.606 | 0.002144 | 0904.1698,0904.0141,etc |
| total energy | 43 | 14 | 3.077 | 0.002128 | 0904.0469,0904.3445,etc |
| field theory | 65 | 31 | 2.133 | 0.002082 | 0904.0469,0904.4473,etc |
| neutron star | 125 | 21 | 4.85 | 0.002058 | 0904.1986,0904.3445,etc |
| gravitational field | 172 | 55 | 3.111 | 0.002029 | 0904.0469,0904.2321,etc |
| geodesic equation | 50 | 18 | 2.882 | 0.002018 | 0904.2321,0904.2394,etc |
| power spectrum | 76 | 21 | 3.65 | 0.00194 | 0904.1698,0904.0829,etc |
| scale factor | 227 | 61 | 3.767 | 0.00193 | 0904.2321,0904.4554,etc |
| dispersion relation | 87 | 23 | 3.864 | 0.001903 | 0904.3377,0904.0829,etc |
| arbitrary function | 61 | 29 | 2.143 | 0.001829 | 0904.1054,0904.3298,etc |
| field equation | 173 | 54 | 3.245 | 0.001818 | 0904.4473,0904.0940,etc |
| conical singularity | 35 | 11 | 3.2 | 0.001808 | 0904.1484,0904.2723,etc |
| vacuum energy density | 24 | 11 | 2.3 | 0.001739 | 0904.0606,0904.3814,etc |
| extra dimension | 98 | 22 | 4.619 | 0.001726 | 0904.2321,0904.2451,etc |
| expectation value | 163 | 22 | 7.571 | 0.001725 | 0904.1698,0904.0184,etc |
| line element | 90 | 33 | 2.719 | 0.001724 | 0904.3566,0904.3217,etc |
| Lorentz invariance | 41 | 13 | 3.333 | 0.001674 | 0904.0829,0904.4680,etc |
| gauge field | 66 | 23 | 2.909 | 0.001621 | 0904.0829,0904.1484,etc |
| Einstein equation | 228 | 64 | 3.603 | 0.001596 | 0904.0469,0904.0806,etc |
| Ricci tensor | 86 | 36 | 2.429 | 0.001498 | 0904.0469,0904.0829,etc |
| perfect fluid | 76 | 35 | 2.176 | 0.001498 | 0904.0940,0904.3445,etc |
| matter field | 133 | 52 | 2.588 | 0.001488 | 0904.1698,0904.0806,etc |
| tensor perturbation | 50 | 17 | 3.062 | 0.001477 | 0904.0829,0904.4295,etc |
| Friedmann equation | 87 | 29 | 3.0 | 0.001425 | 0904.3566,0904.4554,etc |
| vector field | 79 | 27 | 3.0 | 0.00142 | 0904.0184,0904.0784,etc |
| Einstein-Maxwell equation | 28 | 12 | 2.455 | 0.001416 | 0904.3377,0904.2071,etc |
| mode function | 44 | 12 | 3.818 | 0.001406 | 0904.4554,0904.2190,etc |
| Hilbert space | 54 | 16 | 3.467 | 0.001383 | 0904.3377,0904.0184,etc |
| electromagnetic field | 90 | 26 | 3.48 | 0.001382 | 0904.3377,0904.4554,etc |
| perturbation theory | 34 | 14 | 2.538 | 0.001379 | 0904.1698,0904.0940,etc |
| phase space | 51 | 18 | 2.412 | 0.001363 | 0904.2321,0904.0184,etc |
| Planck scale | 82 | 29 | 2.464 | 0.001356 | 0904.3217,0904.3184,etc |
| scalar perturbation | 47 | 14 | 3.462 | 0.00135 | 0904.0829,0904.0940,etc |
| angular momentum | 120 | 37 | 2.722 | 0.001347 | 0904.0469,0904.1986,etc |
| energy-momentum tensor | 144 | 49 | 2.979 | 0.001345 | 0904.0469,0904.4554,etc |
| stress-energy tensor | 85 | 25 | 3.5 | 0.001324 | 0904.0141,0904.3566,etc |
| gravitational collapse | 31 | 13 | 2.333 | 0.001263 | 0904.0141,0904.0184,etc |
| exact solution | 97 | 48 | 2.021 | 0.00123 | 0904.2321,0904.3566,etc |
| Minkowski space | 42 | 16 | 2.733 | 0.00123 | 0904.0184,0904.0232,etc |
| energy density | 305 | 78 | 3.883 | 0.001219 | 0904.0141,0904.0469,etc |
| critical point | 57 | 13 | 4.667 | 0.001184 | 0904.0829,0904.1577,etc |
| early universe | 63 | 31 | 2.067 | 0.00118 | 0904.3377,0904.0829,etc |
| electric charge | 44 | 13 | 3.583 | 0.001159 | 0904.3377,0904.2042,etc |
| General Relativity | 65 | 28 | 2.259 | 0.001156 | 0904.0141,0904.2321,etc |
| light ray | 43 | 12 | 3.818 | 0.001149 | 0904.0141,0904.4000,etc |
| wave function | 42 | 13 | 2.917 | 0.001142 | 0904.0184,0904.0784,etc |
| time scale | 48 | 11 | 4.7 | 0.001133 | 0904.0141,0904.4554,etc |
| symmetric spacetime | 49 | 16 | 3.0 | 0.001133 | 0904.0141,0904.0469,etc |
| nonumber & & | 32 | 12 | 2.182 | 0.001128 | 0904.0232,0904.1953,etc |
| cosmic acceleration | 74 | 16 | 4.8 | 0.001101 | 0904.3445,0904.2394,etc |
| initial condition | 138 | 46 | 2.822 | 0.001062 | 0904.1698,0904.2321,etc |
| diffeomorphism invariance | 31 | 12 | 2.727 | 0.001046 | 0904.0829,0904.0184,etc |
| static solution | 25 | 11 | 2.2 | 0.001033 | 0904.3445,0904.1340,etc |
| Planck length | 26 | 13 | 2.083 | 0.001027 | 0904.0141,0904.3217,etc |
| Klein-Gordon equation | 35 | 12 | 3.091 | 0.001027 | 0904.0829,0904.3445,etc |
| energy momentum tensor | 45 | 21 | 2.2 | 0.001026 | 0904.4554,0904.3445,etc |
| phantom field | 31 | 11 | 2.7 | 0.001017 | 0904.4554,0904.3445,etc |
| Hubble parameter | 112 | 44 | 2.581 | 0.001012 | 0904.4554,0904.0829,etc |
| cosmological perturbation | 25 | 11 | 2.2 | 0.000995 | 0904.1698,0904.0829,etc |
| quantum level | 27 | 13 | 2.167 | 0.00096 | 0904.0573,0904.1577,etc |
| surface gravity | 45 | 16 | 2.933 | 0.000957 | 0904.0141,0904.2042,etc |
| gauge theory | 42 | 19 | 2.278 | 0.000954 | 0904.3377,0904.0829,etc |
| initial datum | 92 | 22 | 4.333 | 0.000944 | 0904.1698,0904.0141,etc |
| Sitter spacetime | 35 | 12 | 3.0 | 0.000944 | 0904.4554,0904.3217,etc |
| curved space-time | 23 | 11 | 2.2 | 0.000944 | 0904.2589,0904.0980,etc |
| Einstein' equation | 60 | 30 | 2.034 | 0.00092 | 0904.0141,0904.1054,etc |
| affine parameter | 41 | 19 | 2.222 | 0.000913 | 0904.2321,0904.4329,etc |
| ground state | 28 | 14 | 2.077 | 0.000902 | 0904.4801,0904.4680,etc |
| metric coefficient | 22 | 11 | 2.1 | 0.0009 | 0904.1054,0904.4484,etc |
| nonumber && | 40 | 18 | 2.176 | 0.000894 | 0904.3377,0904.0806,etc |
| Killing vector | 48 | 18 | 2.765 | 0.000876 | 0904.0806,0904.2042,etc |
| gauge invariance | 29 | 12 | 2.364 | 0.00087 | 0904.4473,0904.0184,etc |
| evolution equation | 90 | 26 | 3.56 | 0.000868 | 0904.0806,0904.0940,etc |
| test particle | 54 | 22 | 2.524 | 0.000864 | 0904.4329,0904.4680,etc |
| null geodesic | 34 | 14 | 2.538 | 0.000853 | 0904.2321,0904.3304,etc |
| unit vector | 45 | 16 | 2.533 | 0.000843 | 0904.1054,0904.2092,etc |
|