| first-order phase transition | 72 | 14 | 5.231 | 0.007973 | 2009.00291,2009.04218,etc |
| Newtonian gravity | 96 | 16 | 6.2 | 0.00581 | 2009.00846,2009.02914,etc |
| extremal black hole | 73 | 22 | 3.429 | 0.005784 | 2009.02944,2009.03402,etc |
| primordial gravitational wave | 40 | 15 | 2.786 | 0.005062 | 2009.04406,2009.04460,etc |
| dark sector | 91 | 17 | 5.5 | 0.004038 | 2009.00240,2009.01600,etc |
| Einstein frame | 75 | 13 | 6.083 | 0.003375 | 2009.03134,2009.03203,etc |
| outer horizon | 64 | 14 | 4.692 | 0.002973 | 2009.03778,2009.05193,etc |
| gravity sector | 36 | 13 | 2.917 | 0.002942 | 2009.00240,2009.00949,etc |
| boundary condition | 623 | 90 | 6.528 | 0.002832 | 2009.00012,2009.00115,etc |
| mass gap | 68 | 14 | 5.154 | 0.002766 | 2009.01066,2009.01213,etc |
| tensor-to-scalar ratio | 91 | 15 | 6.429 | 0.002702 | 2009.04406,2009.04460,etc |
| quasinormal mode | 120 | 18 | 6.941 | 0.002584 | 2009.00012,2009.02367,etc |
| massive gravity | 48 | 13 | 3.417 | 0.002571 | 2009.05215,2009.05405,etc |
| entanglement entropy | 144 | 19 | 7.944 | 0.002548 | 2009.03826,2009.07732,etc |
| massive particle | 78 | 21 | 3.85 | 0.002505 | 2009.00309,2009.02735,etc |
| coherent state | 115 | 14 | 8.615 | 0.002483 | 2009.00056,2009.00615,etc |
| Kerr spacetime | 51 | 15 | 3.071 | 0.002342 | 2009.00028,2009.01397,etc |
| Jordan frame | 49 | 12 | 4.364 | 0.002341 | 2009.00629,2009.03203,etc |
| tachyonic instability | 52 | 11 | 4.5 | 0.002339 | 2009.03774,2009.03904,etc |
| Levi-Civita connection | 86 | 16 | 5.667 | 0.002324 | 2009.02168,2009.03211,etc |
| fundamental theory | 37 | 15 | 2.571 | 0.002286 | 2009.00846,2009.03428,etc |
| effective action | 111 | 27 | 4.038 | 0.002214 | 2009.00629,2009.01794,etc |
| gravitational field equation | 32 | 14 | 2.385 | 0.002189 | 2009.01600,2009.03203,etc |
| parameter estimation | 80 | 19 | 3.889 | 0.00216 | 2009.01066,2009.05376,etc |
| AdS boundary | 81 | 12 | 7.273 | 0.002121 | 2009.09186,2009.00450,etc |
| primordial power spectrum | 28 | 12 | 2.455 | 0.002031 | 2009.05514,2009.07732,etc |
| light ray | 57 | 18 | 3.294 | 0.001968 | 2009.03265,2009.03310,etc |
| primordial curvature perturbation | 29 | 11 | 2.8 | 0.001944 | 2009.05514,2009.06113,etc |
| two-point function | 83 | 11 | 8.2 | 0.001873 | 2009.03453,2009.02050,etc |
| scalar hair | 37 | 12 | 3.091 | 0.001822 | 2009.03774,2009.03904,etc |
| magnetic charge | 29 | 12 | 2.545 | 0.001794 | 2009.00028,2009.03778,etc |
| massive scalar field | 37 | 15 | 2.5 | 0.001791 | 2009.00012,2009.02367,etc |
| geodesic equation | 68 | 25 | 2.792 | 0.001777 | 2009.00028,2009.00309,etc |
| stationary solution | 49 | 16 | 3.067 | 0.001769 | 2009.06531,2009.06990,etc |
| black hole thermodynamic | 42 | 21 | 2.05 | 0.001758 | 2009.00291,2009.02129,etc |
| initial datum | 213 | 38 | 5.676 | 0.001705 | 2009.00012,2009.00115,etc |
| stress-energy tensor | 120 | 26 | 4.76 | 0.001685 | 2009.00012,2009.00264,etc |
| black hole shadow | 28 | 11 | 2.7 | 0.001672 | 2009.03402,2009.03644,etc |
| dynamical system | 79 | 19 | 4.333 | 0.00167 | 2009.00115,2009.01600,etc |
| null hypersurface | 80 | 15 | 5.214 | 0.001653 | 2009.00115,2009.01243,etc |
| mass term | 43 | 17 | 2.562 | 0.001649 | 2009.03774,2009.05405,etc |
| cosmological horizon | 82 | 23 | 3.591 | 0.001644 | 2009.01243,2009.02735,etc |
| classical solution | 40 | 15 | 2.357 | 0.001609 | 2009.00264,2009.04386,etc |
| binary neutron star | 56 | 23 | 2.5 | 0.001587 | 2009.01066,2009.03896,etc |
| stress energy tensor | 23 | 11 | 2.2 | 0.001554 | 2009.00012,2009.02167,etc |
| differential operator | 53 | 18 | 2.059 | 0.001523 | 2009.01125,2009.06113,etc |
| asymptotic behaviour | 24 | 12 | 2.091 | 0.00149 | 2009.00056,2009.00362,etc |
| Einstein gravity | 77 | 31 | 2.3 | 0.001465 | 2009.02167,2009.02367,etc |
| flat spacetime | 161 | 44 | 3.698 | 0.001424 | 2009.01243,2009.01255,etc |
| extra dimension | 54 | 18 | 3.118 | 0.001423 | 2009.00240,2009.01213,etc |
| Sitter spacetime | 45 | 17 | 2.75 | 0.001417 | 2009.00362,2009.01243,etc |
| conformal factor | 82 | 18 | 4.529 | 0.001397 | 2009.01243,2009.03134,etc |
| mode function | 113 | 17 | 5.75 | 0.001382 | 2009.03453,2009.06330,etc |
| stochastic background | 35 | 14 | 2.615 | 0.001379 | 2009.00846,2009.02928,etc |
| Hubble tension | 35 | 11 | 3.3 | 0.00137 | 2009.01213,2009.07458,etc |
| posterior distribution | 86 | 26 | 3.32 | 0.001346 | 2009.01066,2009.01904,etc |
| component mass | 48 | 19 | 2.333 | 0.001331 | 2009.00012,2009.01066,etc |
| Schwarzschild spacetime | 76 | 20 | 3.947 | 0.001331 | 2009.02367,2009.03211,etc |
| state parameter | 75 | 27 | 2.846 | 0.001225 | 2009.00240,2009.01243,etc |
| field theory | 136 | 54 | 2.472 | 0.001216 | 2009.00012,2009.00264,etc |
| scalar field equation | 48 | 17 | 2.938 | 0.001207 | 2009.03904,2009.03905,etc |
| waveform model | 68 | 16 | 4.467 | 0.00119 | 2009.00043,2009.01066,etc |
| extremal case | 24 | 11 | 2.3 | 0.001141 | 2009.07922,2009.08293,etc |
| electric field | 67 | 18 | 3.882 | 0.001117 | 2009.05904,2009.06311,etc |
| exponential expansion | 28 | 12 | 2.455 | 0.001105 | 2009.04460,2009.05187,etc |
| boundary term | 107 | 23 | 4.818 | 0.001104 | 2009.00264,2009.01255,etc |
| energy scale | 84 | 36 | 2.371 | 0.001087 | 2009.00012,2009.00949,etc |
| Hamiltonian formalism | 26 | 12 | 2.273 | 0.001083 | 2009.00615,2009.01255,etc |
| asymptotic region | 32 | 15 | 2.143 | 0.001082 | 2009.00309,2009.04386,etc |
| quantum mechanic | 101 | 32 | 3.226 | 0.001069 | 2009.00056,2009.00615,etc |
| Planck scale | 129 | 37 | 3.472 | 0.001069 | 2009.02129,2009.02367,etc |
| thermal bath | 37 | 13 | 3.0 | 0.001057 | 2009.06580,2009.10856,etc |
| nonumber && | 74 | 23 | 3.273 | 0.001047 | 2009.00949,2009.01600,etc |
| Kerr solution | 31 | 14 | 2.308 | 0.00103 | 2009.00362,2009.03774,etc |
| metric function | 107 | 38 | 2.865 | 0.001017 | 2009.00115,2009.00949,etc |
| AdS spacetime | 73 | 18 | 3.765 | 0.001004 | 2009.00291,2009.02172,etc |
| Euler-Lagrange equation | 42 | 16 | 2.667 | 0.000997 | 2009.02914,2009.04434,etc |
| sufficient condition | 55 | 21 | 2.7 | 0.000978 | 2009.02944,2009.03354,etc |
| astrophysical object | 25 | 11 | 2.4 | 0.000965 | 2009.02311,2009.03399,etc |
| normalization condition | 28 | 11 | 2.4 | 0.000955 | 2009.03203,2009.05012,etc |
| distant observer | 45 | 15 | 3.071 | 0.000948 | 2009.03265,2009.03310,etc |
| dimensional space | 26 | 13 | 2.083 | 0.000932 | 2009.00362,2009.02172,etc |
| quantum field theory | 136 | 56 | 2.455 | 0.000925 | 2009.00264,2009.00615,etc |
| inflaton field | 67 | 19 | 3.667 | 0.000922 | 2009.00240,2009.01600,etc |
| thermodynamic quantity | 36 | 15 | 2.5 | 0.000916 | 2009.00291,2009.02172,etc |
| energy-momentum tensor | 184 | 53 | 3.0 | 0.000881 | 2009.00240,2009.00949,etc |
| curvature term | 53 | 19 | 2.167 | 0.00088 | 2009.00264,2009.00949,etc |
| cosmic evolution | 24 | 11 | 2.2 | 0.000872 | 2009.02168,2009.03203,etc |
| innermost stable circular orbit | 24 | 11 | 2.1 | 0.000868 | 2009.03265,2009.04898,etc |
| general covariance | 34 | 11 | 3.3 | 0.000867 | 2009.00615,2009.01255,etc |
| cosmological perturbation | 65 | 21 | 3.0 | 0.000859 | 2009.02167,2009.02168,etc |
| finite value | 52 | 23 | 2.136 | 0.000844 | 2009.01125,2009.02129,etc |
| free particle | 35 | 11 | 3.4 | 0.000842 | 2009.02914,2009.05747,etc |
| causal structure | 56 | 17 | 3.438 | 0.000838 | 2009.01756,2009.05016,etc |
| annihilation operator | 47 | 16 | 3.067 | 0.000826 | 2009.00615,2009.01125,etc |
| source term | 42 | 17 | 2.438 | 0.000824 | 2009.00012,2009.06669,etc |
| imaginary part | 105 | 39 | 2.711 | 0.000793 | 2009.00615,2009.02367,etc |
| differential equation | 167 | 72 | 2.324 | 0.000787 | 2009.00012,2009.00115,etc |
| exact solution | 122 | 54 | 2.283 | 0.000774 | 2009.00028,2009.00115,etc |
| general solution | 86 | 41 | 2.125 | 0.00077 | 2009.00615,2009.02150,etc |