| black hole | 18842 | 1929 | 9.364 | 0.005333 | 1901.00021,1901.00025,etc |
| scalar field | 10552 | 1516 | 8.788 | 0.003033 | 1901.00167,1901.00194,etc |
| general relativity | 4143 | 1415 | 2.835 | 0.001419 | 1901.00025,1901.00194,etc |
| gravitational wave | 4156 | 1272 | 3.235 | 0.002155 | 1901.00021,1901.00025,etc |
| energy density | 4242 | 1184 | 3.605 | 0.001497 | 1901.00167,1901.00231,etc |
| initial condition | 3144 | 933 | 3.746 | 0.001336 | 1901.00167,1901.01087,etc |
| scale factor | 3253 | 879 | 5.097 | 0.001891 | 1901.00388,1901.01265,etc |
| field equation | 3362 | 849 | 4.61 | 0.001394 | 1901.00937,1901.00938,etc |
| angular momentum | 3136 | 844 | 3.422 | 0.00139 | 1901.00021,1901.00025,etc |
| boundary condition | 3099 | 820 | 2.577 | 0.001407 | 1901.00021,1901.00218,etc |
| dark energy | 3263 | 817 | 4.185 | 0.002488 | 1901.00805,1901.01031,etc |
| dark matter | 2771 | 772 | 3.326 | 0.002324 | 1901.00805,1901.01031,etc |
| event horizon | 3010 | 768 | 2.88 | 0.001685 | 1901.00021,1901.01176,etc |
| quantum gravity | 2213 | 701 | 3.362 | 0.001377 | 1901.01596,1901.01731,etc |
| differential equation | 1494 | 676 | 2.17 | 0.000754 | 1901.00021,1901.00218,etc |
| gravitational field | 1739 | 654 | 2.459 | 0.00134 | 1901.00025,1901.00805,etc |
| neutron star | 3210 | 651 | 5.604 | 0.002771 | 1901.00025,1901.00194,etc |
| energy-momentum tensor | 1850 | 643 | 2.489 | 0.001429 | 1901.00025,1901.00231,etc |
| Hubble parameter | 1725 | 602 | 2.5 | 0.001549 | 1901.00167,1901.01873,etc |
| matter field | 1461 | 586 | 2.422 | 0.001034 | 1901.00194,1901.00805,etc |
| string theory | 1558 | 574 | 2.326 | 0.001158 | 1901.01253,1901.01873,etc |
| quantum field theory | 1014 | 512 | 2.387 | 0.00101 | 1901.01167,1901.01596,etc |
| vector field | 1915 | 510 | 3.771 | 0.001416 | 1901.00194,1901.00388,etc |
| compact object | 1186 | 479 | 2.028 | 0.001162 | 1901.00021,1901.00025,etc |
| flat spacetime | 1166 | 462 | 2.231 | 0.000984 | 1901.00021,1901.01167,etc |
| perfect fluid | 1106 | 457 | 2.447 | 0.001252 | 1901.00231,1901.00805,etc |
| Planck mass | 853 | 449 | 3.536 | 0.000648 | 1901.02892,1901.04128,etc |
| gravity theory | 1094 | 446 | 2.692 | 0.001173 | 1901.00977,1901.01265,etc |
| early universe | 989 | 443 | 2.161 | 0.000908 | 1901.00167,1901.01596,etc |
| phase space | 2104 | 440 | 4.778 | 0.002092 | 1901.00388,1901.01202,etc |
| cosmological model | 1028 | 440 | 2.5 | 0.001116 | 1901.01279,1901.01363,etc |
| power spectrum | 2678 | 438 | 5.097 | 0.002441 | 1901.00167,1901.01087,etc |
| upper limit | 1048 | 436 | 2.3 | 0.001355 | 1901.01873,1901.03533,etc |
| spherical symmetry | 897 | 424 | 2.037 | 0.0008 | 1901.01202,1901.01265,etc |
| Friedmann equation | 1112 | 417 | 2.758 | 0.001267 | 1901.00167,1901.00805,etc |
| general solution | 757 | 409 | 2.061 | 0.000574 | 1901.00977,1901.01873,etc |
| numerical simulation | 839 | 396 | 2.148 | 0.000647 | 1901.00025,1901.00167,etc |
| phase transition | 1816 | 393 | 4.115 | 0.002712 | 1901.00167,1901.00218,etc |
| Einstein' equation | 836 | 391 | 3.304 | 0.00084 | 1901.00231,1901.01031,etc |
| expectation value | 1320 | 388 | 3.355 | 0.001068 | 1901.00869,1901.00977,etc |
| kinetic term | 1017 | 379 | 3.219 | 0.000824 | 1901.01031,1901.01873,etc |
| Einstein-Hilbert action | 618 | 369 | 2.333 | 0.000577 | 1901.00194,1901.00937,etc |
| arbitrary function | 634 | 358 | 2.037 | 0.000545 | 1901.00805,1901.01167,etc |
| quantum theory | 941 | 356 | 2.52 | 0.00108 | 1901.00805,1901.01279,etc |
| metric function | 1020 | 355 | 3.654 | 0.001171 | 1901.00231,1901.00937,etc |
| standard model | 758 | 350 | 5.808 | 0.000671 | 1901.01905,1901.02461,etc |
| numerical solution | 755 | 347 | 2.074 | 0.000821 | 1901.00218,1901.00937,etc |
| quantum mechanic | 896 | 346 | 4.25 | 0.001038 | 1901.01873,1901.03755,etc |
| proper time | 964 | 341 | 5.286 | 0.001056 | 1901.00021,1901.00938,etc |
| black hole solution | 957 | 340 | 3.741 | 0.002264 | 1901.00231,1901.00977,etc |
| stress-energy tensor | 848 | 340 | 2.652 | 0.00096 | 1901.00937,1901.00938,etc |
| electromagnetic field | 1005 | 339 | 3.043 | 0.001448 | 1901.00025,1901.01596,etc |
| Planck scale | 907 | 334 | 2.462 | 0.001142 | 1901.01596,1901.01731,etc |
| initial datum | 1491 | 334 | 2.421 | 0.001616 | 1901.00021,1901.00194,etc |
| magnetic field | 1853 | 331 | 2.583 | 0.002933 | 1901.00025,1901.01087,etc |
| particle physics | 547 | 328 | 3.174 | 0.000452 | 1901.01253,1901.03387,etc |
| total energy | 577 | 326 | 2.05 | 0.000696 | 1901.02730,1901.03354,etc |
| perturbation theory | 789 | 326 | 2.222 | 0.000683 | 1901.01265,1901.01731,etc |
| scalar perturbation | 1044 | 324 | 4.158 | 0.00151 | 1901.00167,1901.01265,etc |
| quantum fluctuation | 753 | 320 | 2.741 | 0.000846 | 1901.00977,1901.01031,etc |
| gauge field | 1351 | 318 | 2.95 | 0.001948 | 1901.01596,1901.01897,etc |
| metric perturbation | 878 | 317 | 2.467 | 0.000749 | 1901.01265,1901.04674,etc |
| cosmological parameter | 945 | 316 | 2.312 | 0.001413 | 1901.00167,1901.03650,etc |
| cosmic time | 643 | 315 | 2.5 | 0.000901 | 1901.00167,1901.02767,etc |
| imaginary part | 911 | 308 | 3.095 | 0.001113 | 1901.03413,1901.03779,etc |
| energy scale | 662 | 308 | 2.1 | 0.000697 | 1901.01596,1901.01731,etc |
| asymptotic behavior | 566 | 305 | 2.185 | 0.00054 | 1901.01265,1901.02202,etc |
| electric charge | 820 | 305 | 2.95 | 0.001295 | 1901.01596,1901.02155,etc |
| gravitational collapse | 748 | 303 | 2.2 | 0.000851 | 1901.01031,1901.02965,etc |
| test particle | 1198 | 301 | 7.706 | 0.002108 | 1901.00021,1901.01363,etc |
| gravitational interaction | 556 | 301 | 3.421 | 0.000778 | 1901.00231,1901.01363,etc |
| Riemann tensor | 730 | 298 | 2.385 | 0.000608 | 1901.00021,1901.01363,etc |
| equatorial plane | 1016 | 294 | 3.417 | 0.001188 | 1901.00025,1901.01087,etc |
| scalar-tensor theory | 842 | 287 | 6.167 | 0.000909 | 1901.00194,1901.00937,etc |
| kinetic energy | 573 | 286 | 2.043 | 0.000736 | 1901.00167,1901.01596,etc |
| effective field theory | 548 | 283 | 2.333 | 0.001116 | 1901.01265,1901.01731,etc |
| Hawking radiation | 946 | 275 | 4.417 | 0.001951 | 1901.00977,1901.01506,etc |
| null geodesic | 827 | 273 | 6.133 | 0.001247 | 1901.01176,1901.02592,etc |
| Einstein gravity | 796 | 273 | 2.15 | 0.001187 | 1901.01363,1901.03972,etc |
| affine parameter | 576 | 263 | 3.833 | 0.000463 | 1901.00021,1901.01167,etc |
| Killing vector | 788 | 262 | 2.25 | 0.001059 | 1901.01176,1901.01891,etc |
| luminosity distance | 989 | 261 | 3.0 | 0.00165 | 1901.03998,1901.06969,etc |
| real part | 593 | 259 | 2.375 | 0.000881 | 1901.04586,1901.05370,etc |
| mass ratio | 1005 | 258 | 5.143 | 0.001343 | 1901.00021,1901.00938,etc |
| boundary term | 913 | 257 | 2.5 | 0.001317 | 1901.00194,1901.04973,etc |
| circular orbit | 952 | 256 | 5.529 | 0.001517 | 1901.01253,1901.01363,etc |
| conformal transformation | 787 | 256 | 3.789 | 0.000879 | 1901.00937,1901.01891,etc |
| first law | 1013 | 253 | 3.857 | 0.001487 | 1901.00937,1901.01087,etc |
| critical point | 1515 | 251 | 6.909 | 0.003009 | 1901.01176,1901.01897,etc |
| initial state | 795 | 251 | 4.846 | 0.000968 | 1901.03933,1901.04180,etc |
| Hawking temperature | 696 | 251 | 2.421 | 0.001551 | 1901.00218,1901.01506,etc |
| geodesic equation | 609 | 249 | 4.571 | 0.000916 | 1901.00021,1901.01202,etc |
| Klein-Gordon equation | 587 | 249 | 2.81 | 0.001025 | 1901.01176,1901.01265,etc |
| binary black hole | 423 | 249 | 2.438 | 0.001333 | 1901.00869,1901.02227,etc |
| symmetric spacetime | 484 | 248 | 4.167 | 0.00068 | 1901.01265,1901.01363,etc |
| supermassive black hole | 529 | 242 | 3.833 | 0.001681 | 1901.00025,1901.03064,etc |
| quantum state | 642 | 242 | 3.077 | 0.000897 | 1901.02767,1901.03387,etc |
| integration constant | 441 | 241 | 2.571 | 0.000519 | 1901.00937,1901.02965,etc |
| physical quantity | 352 | 240 | 2.273 | 0.000337 | 1901.00937,1901.01087,etc |
| item The | 446 | 238 | 2.385 | 0.000507 | 1901.02592,1901.03779,etc |
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