| entanglement entropy | 211 | 11 | 20.9 | 0.005339 | 1809.02905,1809.05529,etc |
| black hole | 1207 | 135 | 8.985 | 0.004926 | 1809.05348,1809.04084,etc |
| loop quantum gravity | 31 | 11 | 3.0 | 0.004668 | 1809.03483,1809.03172,etc |
| wave equation | 104 | 21 | 5.15 | 0.003814 | 1809.03569,1809.07795,etc |
| scalar field | 837 | 121 | 6.967 | 0.003266 | 1809.07270,1809.04084,etc |
| null infinity | 56 | 13 | 3.833 | 0.003218 | 1809.05144,1809.10037,etc |
| primordial power spectrum | 58 | 11 | 5.7 | 0.002986 | 1809.07737,1809.03172,etc |
| gravitational wave | 274 | 73 | 3.792 | 0.002953 | 1809.05348,1809.03500,etc |
| magnetic field | 93 | 24 | 3.913 | 0.002927 | 1809.04084,1809.08682,etc |
| black hole solution | 103 | 31 | 3.4 | 0.002873 | 1809.04084,1809.04081,etc |
| energy condition | 97 | 15 | 5.5 | 0.002835 | 1809.05144,1809.05529,etc |
| initial datum | 153 | 26 | 6.08 | 0.002794 | 1809.01197,1809.08277,etc |
| dark energy | 266 | 57 | 4.732 | 0.002744 | 1809.03320,1809.01961,etc |
| extremal black hole | 60 | 15 | 4.143 | 0.002722 | 1809.04084,1809.03320,etc |
| dark energy model | 54 | 14 | 4.077 | 0.002684 | 1809.01961,1809.08792,etc |
| critical point | 65 | 21 | 3.2 | 0.002676 | 1809.09169,1809.03320,etc |
| Sitter spacetime | 35 | 11 | 3.4 | 0.002659 | 1809.07270,1809.02747,etc |
| dark matter | 212 | 37 | 5.806 | 0.002643 | 1809.01961,1809.02340,etc |
| inflaton field | 36 | 15 | 2.5 | 0.00256 | 1809.07737,1809.05410,etc |
| phase transition | 98 | 20 | 4.684 | 0.002503 | 1809.04084,1809.01197,etc |
| commutation relation | 37 | 14 | 2.077 | 0.002454 | 1809.05144,1809.02905,etc |
| gauge theory | 77 | 19 | 4.167 | 0.002317 | 1809.09174,1809.05037,etc |
| naked singularity | 44 | 11 | 4.1 | 0.002293 | 1809.02480,1809.10457,etc |
| near-horizon geometry | 71 | 11 | 7.0 | 0.00227 | 1809.04084,1809.07795,etc |
| dilaton field | 59 | 16 | 3.867 | 0.002179 | 1809.03320,1809.09174,etc |
| Poisson equation | 46 | 11 | 4.2 | 0.002153 | 1809.05907,1809.03496,etc |
| power spectrum | 227 | 35 | 6.618 | 0.002064 | 1809.09169,1809.07737,etc |
| null energy condition | 33 | 15 | 2.214 | 0.002053 | 1809.02480,1809.07010,etc |
| nonumber && | 197 | 21 | 9.8 | 0.001938 | 1809.11018,1809.02905,etc |
| wave function | 108 | 23 | 4.773 | 0.001889 | 1809.05386,1809.08277,etc |
| scale factor | 277 | 66 | 4.231 | 0.001884 | 1809.02747,1809.09169,etc |
| boundary condition | 308 | 69 | 4.088 | 0.001874 | 1809.04084,1809.01197,etc |
| null geodesic | 43 | 17 | 2.562 | 0.001847 | 1809.07270,1809.05386,etc |
| Poisson bracket | 92 | 21 | 4.35 | 0.001784 | 1809.07270,1809.01908,etc |
| near-horizon region | 31 | 11 | 3.0 | 0.001755 | 1809.09092,1809.10154,etc |
| Lagrangian density | 36 | 15 | 2.5 | 0.001713 | 1809.07563,1809.09248,etc |
| quantum theory | 144 | 36 | 3.171 | 0.0017 | 1809.02747,1809.03483,etc |
| event horizon | 192 | 56 | 3.382 | 0.001683 | 1809.04084,1809.05386,etc |
| extra dimension | 77 | 16 | 5.067 | 0.001673 | 1809.11018,1809.00702,etc |
| general relativity | 383 | 106 | 3.533 | 0.001672 | 1809.03500,1809.05386,etc |
| electric field | 114 | 22 | 5.381 | 0.001672 | 1809.04081,1809.08356,etc |
| energy density | 282 | 81 | 3.35 | 0.001631 | 1809.04081,1809.03320,etc |
| Einstein' equation | 88 | 40 | 2.231 | 0.001628 | 1809.04081,1809.11018,etc |
| initial condition | 226 | 75 | 3.027 | 0.001627 | 1809.01197,1809.05386,etc |
| electromagnetic field | 86 | 31 | 2.833 | 0.001586 | 1809.08682,1809.03320,etc |
| gravity model | 36 | 15 | 2.5 | 0.00155 | 1809.05907,1809.03496,etc |
| field equation | 298 | 78 | 3.818 | 0.001505 | 1809.07270,1809.04084,etc |
| black hole thermodynamic | 34 | 16 | 2.2 | 0.001505 | 1809.10457,1809.03471,etc |
| surface gravity | 56 | 17 | 3.438 | 0.0015 | 1809.03483,1809.03569,etc |
| massive field | 36 | 14 | 2.615 | 0.001491 | 1809.03569,1809.04612,etc |
| metric perturbation | 47 | 12 | 4.182 | 0.001491 | 1809.05144,1809.03496,etc |
| massive scalar field | 36 | 17 | 2.188 | 0.001485 | 1809.04084,1809.03569,etc |
| kinetic term | 95 | 35 | 2.706 | 0.001485 | 1809.07724,1809.09174,etc |
| scalar mode | 47 | 13 | 3.667 | 0.00148 | 1809.04084,1809.07737,etc |
| present time | 33 | 15 | 2.286 | 0.001467 | 1809.09169,1809.04218,etc |
| no-hair theorem | 37 | 12 | 2.182 | 0.001429 | 1809.04084,1809.06611,etc |
| dimensional spacetime | 37 | 18 | 2.059 | 0.00141 | 1809.07270,1809.03483,etc |
| spacetime dimension | 83 | 22 | 3.905 | 0.0014 | 1809.04081,1809.07724,etc |
| gravitational collapse | 48 | 15 | 3.357 | 0.001396 | 1809.03569,1809.04408,etc |
| Einstein field equation | 41 | 19 | 2.222 | 0.001391 | 1809.08277,1809.05179,etc |
| Planck datum | 26 | 12 | 2.273 | 0.00139 | 1809.07737,1809.09174,etc |
| two-point function | 125 | 16 | 8.2 | 0.001375 | 1809.02747,1809.03569,etc |
| Cauchy surface | 36 | 14 | 2.692 | 0.001372 | 1809.02747,1809.08277,etc |
| black hole horizon | 66 | 26 | 2.6 | 0.001371 | 1809.04084,1809.04081,etc |
| vacuum energy density | 31 | 11 | 3.0 | 0.001335 | 1809.02340,1809.00321,etc |
| tensor-to-scalar ratio | 47 | 17 | 2.5 | 0.001333 | 1809.07737,1809.07216,etc |
| Hamiltonian constraint | 79 | 23 | 3.545 | 0.00132 | 1809.04408,1809.10969,etc |
| gauge field | 129 | 27 | 4.846 | 0.001315 | 1809.07270,1809.04084,etc |
| mass ratio | 46 | 12 | 4.0 | 0.001303 | 1809.03500,1809.10317,etc |
| flat spacetime | 97 | 37 | 2.472 | 0.00129 | 1809.02747,1809.06192,etc |
| early universe | 80 | 34 | 2.364 | 0.001289 | 1809.02747,1809.07724,etc |
| string theory | 148 | 47 | 3.174 | 0.001286 | 1809.07270,1809.04084,etc |
| Weyl tensor | 59 | 14 | 4.462 | 0.001285 | 1809.04084,1809.03483,etc |
| quantum gravity | 200 | 57 | 3.321 | 0.001284 | 1809.07270,1809.01197,etc |
| Hawking radiation | 52 | 18 | 3.0 | 0.001282 | 1809.04081,1809.00124,etc |
| binary system | 58 | 18 | 3.353 | 0.001278 | 1809.05670,1809.08237,etc |
| extrinsic curvature | 72 | 19 | 3.944 | 0.001251 | 1809.06192,1809.08277,etc |
| probability distribution | 40 | 11 | 3.7 | 0.001247 | 1809.03500,1809.03598,etc |
| Sitter space | 79 | 14 | 6.0 | 0.001239 | 1809.07270,1809.02747,etc |
| Hilbert space | 65 | 16 | 3.867 | 0.001234 | 1809.07270,1809.03483,etc |
| expectation value | 134 | 38 | 3.595 | 0.001231 | 1809.04084,1809.01197,etc |
| boundary term | 60 | 20 | 3.053 | 0.001219 | 1809.07270,1809.05144,etc |
| Riemann tensor | 65 | 29 | 2.286 | 0.001217 | 1809.04084,1809.11018,etc |
| partition function | 65 | 12 | 5.091 | 0.001205 | 1809.07270,1809.02732,etc |
| mass term | 47 | 20 | 2.158 | 0.001196 | 1809.07724,1809.03569,etc |
| angular momentum | 200 | 62 | 3.262 | 0.001194 | 1809.04084,1809.05386,etc |
| energy-momentum tensor | 134 | 49 | 2.771 | 0.001172 | 1809.04084,1809.07216,etc |
| phase space | 175 | 37 | 4.417 | 0.001131 | 1809.07270,1809.04084,etc |
| AdS spacetime | 41 | 18 | 2.235 | 0.001127 | 1809.04084,1809.05529,etc |
| Hawking temperature | 48 | 21 | 2.3 | 0.001117 | 1809.04084,1809.04081,etc |
| Hubble parameter | 124 | 43 | 2.929 | 0.001103 | 1809.09169,1809.01961,etc |
| stress-energy tensor | 76 | 27 | 2.808 | 0.001099 | 1809.02747,1809.00124,etc |
| numerical simulation | 44 | 16 | 2.867 | 0.001092 | 1809.03500,1809.05386,etc |
| first law | 55 | 21 | 2.55 | 0.001075 | 1809.04084,1809.03483,etc |
| energy momentum tensor | 51 | 21 | 2.5 | 0.001071 | 1809.02747,1809.03320,etc |
| Schwarzschild solution | 26 | 11 | 2.5 | 0.001057 | 1809.06611,1809.03527,etc |
| conformal boundary | 46 | 11 | 4.5 | 0.00105 | 1809.07270,1809.04084,etc |
| circular orbit | 62 | 22 | 2.714 | 0.001041 | 1809.05670,1809.09473,etc |
| kinetic energy | 59 | 22 | 2.714 | 0.00103 | 1809.07270,1809.05386,etc |
| initial state | 42 | 19 | 2.278 | 0.00102 | 1809.05386,1809.05037,etc |
|