| quantum mechanic | 137 | 33 | 4.125 | 0.003949 | 1804.01081,1804.10551,etc |
| boundary condition | 304 | 81 | 3.788 | 0.003886 | 1804.01081,1804.00942,etc |
| black hole thermodynamic | 36 | 12 | 3.091 | 0.003546 | 1804.01081,1804.02650,etc |
| dark sector | 55 | 11 | 5.4 | 0.003449 | 1804.08558,1804.00458,etc |
| density contrast | 33 | 13 | 2.5 | 0.003443 | 1804.04320,1804.00083,etc |
| conformal symmetry | 44 | 14 | 3.077 | 0.003435 | 1804.03369,1804.10446,etc |
| cosmological perturbation | 37 | 14 | 2.769 | 0.003348 | 1804.09215,1804.07637,etc |
| entanglement entropy | 114 | 17 | 7.0 | 0.00323 | 1804.00942,1804.10446,etc |
| distant observer | 37 | 11 | 3.3 | 0.003159 | 1804.07570,1804.06966,etc |
| Sitter space | 80 | 14 | 6.077 | 0.003069 | 1804.09985,1804.05953,etc |
| dimensional spacetime | 47 | 16 | 2.733 | 0.002947 | 1804.03369,1804.07521,etc |
| light ray | 95 | 15 | 6.714 | 0.00288 | 1804.06944,1804.04898,etc |
| extra dimension | 77 | 16 | 4.8 | 0.002869 | 1804.00942,1804.09215,etc |
| Horndeski theory | 50 | 12 | 3.909 | 0.002685 | 1804.00535,1804.01731,etc |
| first law | 116 | 21 | 3.85 | 0.00251 | 1804.02650,1804.10446,etc |
| background field | 51 | 14 | 3.769 | 0.002413 | 1804.00012,1804.09215,etc |
| causal structure | 28 | 12 | 2.364 | 0.002354 | 1804.11219,1804.10536,etc |
| diffeomorphism invariance | 32 | 11 | 3.1 | 0.002237 | 1804.00012,1804.11212,etc |
| curved space-time | 41 | 12 | 3.636 | 0.002114 | 1804.04434,1804.00608,etc |
| electric field | 84 | 27 | 3.192 | 0.0021 | 1804.01081,1804.07570,etc |
| consistency condition | 62 | 12 | 5.545 | 0.001963 | 1804.03369,1804.10843,etc |
| inflaton field | 70 | 17 | 4.125 | 0.001953 | 1804.09171,1804.02699,etc |
| nonumber && | 56 | 11 | 5.5 | 0.001902 | 1804.06298,1804.10620,etc |
| static solution | 50 | 14 | 3.769 | 0.001872 | 1804.09573,1804.02902,etc |
| central charge | 36 | 11 | 3.5 | 0.001807 | 1804.05602,1804.07570,etc |
| black hole solution | 93 | 36 | 2.629 | 0.001782 | 1804.02650,1804.05602,etc |
| binary black hole | 38 | 15 | 2.071 | 0.001776 | 1804.07866,1804.09894,etc |
| integrability condition | 51 | 13 | 3.917 | 0.001757 | 1804.06181,1804.10287,etc |
| horizon geometry | 46 | 11 | 3.9 | 0.001747 | 1804.06985,1804.09614,etc |
| matter field | 144 | 53 | 2.75 | 0.001737 | 1804.01081,1804.09215,etc |
| Dirac equation | 54 | 14 | 4.0 | 0.001734 | 1804.02842,1804.04434,etc |
| Cauchy surface | 35 | 13 | 2.833 | 0.001691 | 1804.00942,1804.05602,etc |
| Green function | 62 | 13 | 4.833 | 0.001651 | 1804.02842,1804.04224,etc |
| Einstein gravity | 119 | 34 | 2.848 | 0.001628 | 1804.00942,1804.05921,etc |
| black hole horizon | 71 | 31 | 2.233 | 0.001609 | 1804.01081,1804.10551,etc |
| Euler-Lagrange equation | 59 | 18 | 3.412 | 0.001598 | 1804.09215,1804.04898,etc |
| Green' function | 59 | 14 | 4.308 | 0.001589 | 1804.01481,1804.01394,etc |
| parameter estimation | 35 | 14 | 2.615 | 0.001587 | 1804.07866,1804.03704,etc |
| boson star | 40 | 11 | 2.6 | 0.001584 | 1804.10374,1804.03208,etc |
| momentum space | 56 | 15 | 2.5 | 0.001579 | 1804.01081,1804.02842,etc |
| Hamiltonian formalism | 39 | 12 | 3.364 | 0.001575 | 1804.06181,1804.03369,etc |
| symmetric solution | 48 | 20 | 2.474 | 0.00157 | 1804.05023,1804.10446,etc |
| massive particle | 78 | 21 | 3.85 | 0.001554 | 1804.10551,1804.10374,etc |
| central density | 79 | 12 | 7.091 | 0.001459 | 1804.05921,1804.01779,etc |
| stability analysis | 36 | 11 | 3.5 | 0.001436 | 1804.09215,1804.07030,etc |
| curved spacetime | 110 | 34 | 3.303 | 0.001423 | 1804.10551,1804.02842,etc |
| Lovelock gravity | 42 | 13 | 3.417 | 0.001359 | 1804.10446,1804.00249,etc |
| exact solution | 108 | 50 | 2.122 | 0.001351 | 1804.10551,1804.09215,etc |
| outer horizon | 35 | 15 | 2.429 | 0.001339 | 1804.01081,1804.10551,etc |
| field space | 44 | 14 | 2.692 | 0.001317 | 1804.00012,1804.07637,etc |
| quasinormal mode | 40 | 11 | 3.7 | 0.00131 | 1804.00708,1804.04224,etc |
| effective action | 124 | 26 | 4.92 | 0.001293 | 1804.01081,1804.04671,etc |
| boundary term | 88 | 21 | 4.3 | 0.001291 | 1804.01081,1804.03992,etc |
| effective theory | 33 | 16 | 2.067 | 0.001276 | 1804.04671,1804.05921,etc |
| gravity theory | 78 | 37 | 2.139 | 0.001262 | 1804.09215,1804.04320,etc |
| previous case | 81 | 23 | 3.636 | 0.00126 | 1804.08670,1804.01387,etc |
| annihilation operator | 40 | 18 | 2.294 | 0.001242 | 1804.05282,1804.01481,etc |
| quantum correction | 49 | 22 | 2.286 | 0.001195 | 1804.00942,1804.04224,etc |
| effective mass | 56 | 16 | 3.667 | 0.001188 | 1804.03208,1804.03158,etc |
| evolution equation | 97 | 32 | 3.065 | 0.001181 | 1804.10287,1804.03208,etc |
| cosmological constant problem | 53 | 17 | 3.25 | 0.001157 | 1804.08558,1804.09985,etc |
| logarithmic term | 73 | 12 | 6.545 | 0.001156 | 1804.09215,1804.02020,etc |
| initial datum | 181 | 25 | 7.375 | 0.001156 | 1804.10287,1804.08456,etc |
| Einstein frame | 63 | 20 | 3.211 | 0.001144 | 1804.05387,1804.00466,etc |
| non-relativistic limit | 43 | 11 | 4.2 | 0.001135 | 1804.09620,1804.05921,etc |
| Einstein' equation | 78 | 37 | 2.139 | 0.001116 | 1804.09215,1804.10287,etc |
| analytical solution | 35 | 16 | 2.2 | 0.001111 | 1804.07570,1804.01779,etc |
| nonumber & | 88 | 32 | 2.71 | 0.001077 | 1804.01081,1804.09215,etc |
| Schr"odinger equation | 32 | 13 | 2.333 | 0.001074 | 1804.00942,1804.00458,etc |
| Hamiltonian constraint | 41 | 13 | 3.333 | 0.001062 | 1804.01081,1804.00942,etc |
| Poisson bracket | 78 | 14 | 5.923 | 0.001052 | 1804.03369,1804.02902,etc |
| path integral | 50 | 15 | 3.5 | 0.001039 | 1804.01081,1804.00942,etc |
| spatial curvature | 29 | 11 | 2.5 | 0.001003 | 1804.04320,1804.09727,etc |
| Killing horizon | 32 | 11 | 2.4 | 0.001003 | 1804.10287,1804.01519,etc |
| matter sector | 22 | 11 | 2.1 | 0.000998 | 1804.04671,1804.01124,etc |
| linear perturbation | 47 | 19 | 2.167 | 0.000997 | 1804.03158,1804.07365,etc |
| extremal black hole | 32 | 15 | 2.071 | 0.000992 | 1804.02650,1804.07570,etc |
| slow-roll parameter | 38 | 12 | 3.364 | 0.000985 | 1804.03633,1804.07124,etc |
| spatial infinity | 110 | 24 | 4.739 | 0.000979 | 1804.03158,1804.10536,etc |
| Einstein' gravity | 28 | 14 | 2.077 | 0.000973 | 1804.05602,1804.10446,etc |
| flat spacetime | 111 | 41 | 2.75 | 0.000958 | 1804.09215,1804.07570,etc |
| curvature tensor | 47 | 19 | 2.556 | 0.000952 | 1804.09215,1804.01519,etc |
| posterior distribution | 62 | 12 | 5.273 | 0.000946 | 1804.04845,1804.07866,etc |
| Planck scale | 78 | 31 | 2.567 | 0.000945 | 1804.10551,1804.09215,etc |
| black hole mass | 54 | 22 | 2.524 | 0.000932 | 1804.10374,1804.07570,etc |
| energy-momentum tensor | 156 | 54 | 2.925 | 0.000926 | 1804.05602,1804.03208,etc |
| unknown function | 26 | 12 | 2.273 | 0.000924 | 1804.09620,1804.01124,etc |
| Lagrange multiplier | 37 | 13 | 3.0 | 0.000922 | 1804.01102,1804.09017,etc |
| static case | 22 | 11 | 2.1 | 0.000914 | 1804.04821,1804.01544,etc |
| linearized equation | 24 | 11 | 2.3 | 0.000899 | 1804.05602,1804.03656,etc |
| metric function | 68 | 32 | 2.129 | 0.000871 | 1804.05921,1804.10287,etc |
| scalar-tensor theory | 57 | 21 | 2.5 | 0.00087 | 1804.05387,1804.03208,etc |
| maximal value | 33 | 16 | 2.133 | 0.000862 | 1804.04320,1804.00466,etc |
| spherical symmetry | 98 | 40 | 2.436 | 0.000851 | 1804.10374,1804.05387,etc |
| exact form | 24 | 11 | 2.3 | 0.000846 | 1804.02902,1804.04224,etc |
| geodesic equation | 47 | 20 | 2.316 | 0.000843 | 1804.09620,1804.05387,etc |
| quantum theory | 89 | 36 | 2.514 | 0.000842 | 1804.01081,1804.05602,etc |
| Riemann curvature tensor | 23 | 11 | 2.2 | 0.00084 | 1804.00453,1804.06825,etc |
| imaginary part | 89 | 32 | 2.806 | 0.000836 | 1804.10287,1804.05442,etc |
| power law | 40 | 19 | 2.167 | 0.000832 | 1804.09215,1804.05921,etc |
|