| Sitter space | 51 | 11 | 4.2 | 0.005571 | 0905.2041,0905.2774,etc |
| black hole | 1207 | 105 | 11.596 | 0.005389 | 0905.1089,0905.0178,etc |
| apparent horizon | 131 | 12 | 10.545 | 0.005377 | 0905.0178,0905.4352,etc |
| extra dimension | 112 | 22 | 5.048 | 0.004557 | 0905.4401,0905.2774,etc |
| dominant energy condition | 45 | 11 | 3.9 | 0.004384 | 0905.0527,0905.2728,etc |
| vector field | 260 | 37 | 7.028 | 0.004202 | 0905.2041,0905.3212,etc |
| dark matter | 142 | 36 | 3.971 | 0.003949 | 0905.0527,0905.3110,etc |
| wave function | 151 | 24 | 6.478 | 0.003594 | 0905.1089,0905.3695,etc |
| upper limit | 94 | 19 | 5.111 | 0.003515 | 0905.1112,0905.3914,etc |
| Lagrangian density | 63 | 17 | 3.875 | 0.003386 | 0905.1668,0905.1621,etc |
| General Relativity | 148 | 49 | 2.896 | 0.003371 | 0905.1089,0905.4213,etc |
| massive gravity | 31 | 11 | 3.0 | 0.003354 | 0905.0819,0905.2943,etc |
| dark energy | 192 | 50 | 3.878 | 0.003314 | 0905.2041,0905.1621,etc |
| scalar field | 454 | 79 | 5.731 | 0.003311 | 0905.3877,0905.2041,etc |
| black hole solution | 88 | 27 | 3.346 | 0.003183 | 0905.0178,0905.2055,etc |
| dispersion relation | 102 | 19 | 5.556 | 0.003118 | 0905.3634,0905.2300,etc |
| quantum theory | 174 | 44 | 4.023 | 0.003107 | 0905.3695,0905.1668,etc |
| gravitational wave | 158 | 42 | 3.78 | 0.002966 | 0905.2041,0905.3390,etc |
| spacetime singularity | 59 | 12 | 5.273 | 0.002883 | 0905.0178,0905.3110,etc |
| dark energy model | 36 | 13 | 2.75 | 0.002726 | 0905.0241,0905.1522,etc |
| Minkowski space | 63 | 22 | 2.857 | 0.002707 | 0905.4352,0905.3110,etc |
| Hamiltonian constraint | 61 | 16 | 3.933 | 0.002627 | 0905.3821,0905.4529,etc |
| Killing vector | 56 | 19 | 2.944 | 0.002582 | 0905.0178,0905.3212,etc |
| quantum gravity | 169 | 53 | 3.231 | 0.002565 | 0905.3465,0905.4213,etc |
| critical point | 107 | 15 | 7.571 | 0.002559 | 0905.0614,0905.4179,etc |
| static solution | 36 | 12 | 3.182 | 0.00254 | 0905.1510,0905.4401,etc |
| Dirac equation | 51 | 11 | 4.9 | 0.002514 | 0905.0722,0905.3430,etc |
| lapse function | 36 | 17 | 2.188 | 0.002493 | 0905.3695,0905.3821,etc |
| electromagnetic field | 111 | 30 | 3.793 | 0.002404 | 0905.0178,0905.4097,etc |
| cosmological constant term | 23 | 11 | 2.2 | 0.002368 | 0905.3695,0905.2446,etc |
| angular momentum | 179 | 36 | 5.086 | 0.002349 | 0905.0178,0905.2041,etc |
| Hawking radiation | 65 | 18 | 3.529 | 0.002286 | 0905.3465,0905.3053,etc |
| test particle | 55 | 17 | 3.375 | 0.002275 | 0905.0178,0905.3798,etc |
| gravitational collapse | 53 | 20 | 2.632 | 0.00224 | 0905.2797,0905.3551,etc |
| gravitational field | 214 | 60 | 3.61 | 0.002147 | 0905.0178,0905.2055,etc |
| Einstein gravity | 77 | 23 | 3.364 | 0.002137 | 0905.4213,0905.4401,etc |
| black hole horizon | 64 | 22 | 2.857 | 0.002129 | 0905.0178,0905.2041,etc |
| general relativity | 380 | 107 | 3.528 | 0.002117 | 0905.1089,0905.4213,etc |
| perfect fluid | 88 | 31 | 2.9 | 0.002082 | 0905.4213,0905.3390,etc |
| event horizon | 269 | 53 | 5.154 | 0.002068 | 0905.0178,0905.2055,etc |
| effective field theory | 31 | 11 | 3.0 | 0.002007 | 0905.4352,0905.4220,etc |
| inflaton field | 43 | 13 | 3.5 | 0.00198 | 0905.2041,0905.4557,etc |
| cosmological perturbation | 62 | 15 | 4.286 | 0.00197 | 0905.2041,0905.2835,etc |
| quantum system | 32 | 12 | 2.818 | 0.001943 | 0905.4352,0905.4220,etc |
| solar system | 47 | 14 | 3.385 | 0.001941 | 0905.3877,0905.0614,etc |
| light cone | 62 | 14 | 4.615 | 0.001888 | 0905.2263,0905.3474,etc |
| magnetic field | 87 | 28 | 3.111 | 0.001871 | 0905.3390,0905.0789,etc |
| black hole entropy | 64 | 18 | 3.647 | 0.001866 | 0905.3465,0905.3053,etc |
| causal structure | 42 | 17 | 2.5 | 0.001865 | 0905.1510,0905.3551,etc |
| conformal transformation | 58 | 17 | 3.438 | 0.001863 | 0905.4352,0905.1941,etc |
| time delay | 36 | 12 | 3.182 | 0.001829 | 0905.2055,0905.1523,etc |
| spatial curvature | 36 | 12 | 2.364 | 0.001779 | 0905.3695,0905.1112,etc |
| symmetric solution | 46 | 22 | 2.143 | 0.001774 | 0905.1510,0905.3804,etc |
| Lorentz invariance | 54 | 19 | 2.722 | 0.001764 | 0905.4213,0905.1668,etc |
| Weyl tensor | 32 | 13 | 2.333 | 0.001753 | 0905.4835,0905.4352,etc |
| phase space | 131 | 29 | 4.643 | 0.001752 | 0905.3695,0905.4401,etc |
| Friedmann equation | 66 | 28 | 2.407 | 0.001724 | 0905.0527,0905.2573,etc |
| loop quantum gravity | 52 | 21 | 2.5 | 0.001716 | 0905.3465,0905.1668,etc |
| vacuum energy | 47 | 18 | 2.353 | 0.001704 | 0905.2041,0905.3110,etc |
| symmetric spacetime | 38 | 16 | 2.467 | 0.001694 | 0905.4835,0905.2055,etc |
| first law | 48 | 14 | 3.385 | 0.001688 | 0905.4179,0905.2334,etc |
| field equation | 212 | 65 | 3.297 | 0.001686 | 0905.1089,0905.0178,etc |
| massive particle | 56 | 16 | 3.133 | 0.001684 | 0905.1919,0905.1523,etc |
| Christoffel symbol | 51 | 13 | 4.083 | 0.001661 | 0905.4352,0905.4097,etc |
| Einstein' field equation | 33 | 14 | 2.385 | 0.001653 | 0905.3110,0905.3828,etc |
| quantum mechanic | 124 | 33 | 3.844 | 0.001642 | 0905.3695,0905.3465,etc |
| reference frame | 94 | 15 | 6.643 | 0.00164 | 0905.0178,0905.4213,etc |
| wave equation | 70 | 22 | 2.81 | 0.001633 | 0905.1089,0905.3053,etc |
| energy-momentum tensor | 120 | 46 | 2.622 | 0.001618 | 0905.1089,0905.4213,etc |
| initial condition | 92 | 42 | 2.22 | 0.001618 | 0905.4352,0905.1941,etc |
| partition function | 30 | 11 | 2.8 | 0.001614 | 0905.3053,0905.2334,etc |
| cosmological horizon | 39 | 14 | 2.769 | 0.001605 | 0905.3695,0905.2041,etc |
| gravity theory | 52 | 20 | 2.684 | 0.001591 | 0905.4213,0905.2055,etc |
| scale factor | 153 | 56 | 2.745 | 0.001585 | 0905.3695,0905.3877,etc |
| scalar mode | 51 | 11 | 4.6 | 0.00158 | 0905.2300,0905.2943,etc |
| path integral | 62 | 15 | 4.357 | 0.00156 | 0905.1668,0905.4220,etc |
| quantum field | 34 | 16 | 2.2 | 0.001492 | 0905.2041,0905.4426,etc |
| boundary condition | 234 | 49 | 4.458 | 0.00148 | 0905.0178,0905.4401,etc |
| absolute value | 32 | 16 | 2.067 | 0.001473 | 0905.1735,0905.4179,etc |
| Riemannian manifold | 35 | 13 | 2.75 | 0.001411 | 0905.4401,0905.2001,etc |
| quantum effect | 46 | 19 | 2.333 | 0.001403 | 0905.0178,0905.1668,etc |
| imaginary part | 63 | 18 | 3.647 | 0.001402 | 0905.3877,0905.3634,etc |
| black hole mass | 36 | 15 | 2.214 | 0.001386 | 0905.0178,0905.2041,etc |
| state parameter | 26 | 11 | 2.4 | 0.001362 | 0905.1621,0905.1941,etc |
| initial state | 41 | 16 | 2.667 | 0.001352 | 0905.1668,0905.3634,etc |
| gauge transformation | 81 | 19 | 4.389 | 0.001323 | 0905.4529,0905.2798,etc |
| energy density | 273 | 86 | 3.176 | 0.001304 | 0905.3877,0905.0178,etc |
| scalar-tensor theory | 57 | 12 | 5.091 | 0.001298 | 0905.1941,0905.3110,etc |
| naked singularity | 38 | 19 | 2.056 | 0.001297 | 0905.3804,0905.1523,etc |
| Hilbert space | 76 | 23 | 3.409 | 0.001293 | 0905.3695,0905.3465,etc |
| gauge symmetry | 62 | 13 | 2.417 | 0.001287 | 0905.4529,0905.3427,etc |
| scalar perturbation | 31 | 15 | 2.071 | 0.001286 | 0905.2300,0905.2573,etc |
| density matrix | 49 | 12 | 4.364 | 0.001282 | 0905.3465,0905.3430,etc |
| Riemann tensor | 42 | 15 | 2.929 | 0.001272 | 0905.4352,0905.4097,etc |
| quantum correction | 43 | 12 | 3.727 | 0.001267 | 0905.3627,0905.2446,etc |
| classical mechanic | 38 | 13 | 3.083 | 0.00126 | 0905.4184,0905.4104,etc |
| exact solution | 114 | 43 | 2.69 | 0.001252 | 0905.3695,0905.2041,etc |
| proper time | 78 | 26 | 3.08 | 0.00125 | 0905.0178,0905.2428,etc |
| general expression | 26 | 11 | 2.5 | 0.001247 | 0905.3877,0905.4184,etc |
| Hawking temperature | 52 | 23 | 2.318 | 0.001233 | 0905.3634,0905.4426,etc |
|