| degree distribution | 82 | 14 | 6.231 | 0.003812 | 1902.03435,1902.07347,etc |
| interaction region | 57 | 14 | 4.308 | 0.003225 | 1902.10137,1902.04656,etc |
| free surface | 92 | 15 | 6.071 | 0.003194 | 1902.04034,1902.03446,etc |
| microfluidic device | 26 | 11 | 2.4 | 0.003047 | 1902.05448,1902.09389,etc |
| reaction rate | 52 | 14 | 3.923 | 0.002908 | 1902.08408,1902.08854,etc |
| Green' function | 95 | 17 | 5.875 | 0.002874 | 1902.03342,1902.07135,etc |
| unit cell | 118 | 29 | 3.964 | 0.002755 | 1902.04500,1902.06697,etc |
| pressure drop | 67 | 12 | 5.545 | 0.002738 | 1902.07577,1902.03447,etc |
| plasma density | 69 | 18 | 3.941 | 0.002723 | 1902.09281,1902.04771,etc |
| frequency comb | 40 | 12 | 2.545 | 0.002699 | 1902.03654,1902.04536,etc |
| quantum emitter | 34 | 14 | 2.538 | 0.002524 | 1902.08433,1902.10855,etc |
| dark state | 50 | 12 | 4.455 | 0.002524 | 1902.05628,1902.04284,etc |
| water molecule | 56 | 22 | 2.524 | 0.002509 | 1902.08408,1902.04468,etc |
| friction coefficient | 56 | 11 | 5.4 | 0.002501 | 1902.06207,1902.04410,etc |
| Langevin equation | 57 | 13 | 4.667 | 0.002497 | 1902.10598,1902.03198,etc |
| resonance frequency | 66 | 27 | 2.5 | 0.00241 | 1902.06697,1902.02001,etc |
| spot size | 30 | 14 | 2.231 | 0.002381 | 1902.08433,1902.05628,etc |
| optical mode | 43 | 13 | 3.5 | 0.00235 | 1902.07350,1902.00670,etc |
| laser pulse | 142 | 39 | 3.684 | 0.002331 | 1902.10137,1902.09007,etc |
| band gap | 68 | 17 | 4.188 | 0.002327 | 1902.10392,1902.04001,etc |
| single molecule | 33 | 14 | 2.462 | 0.002259 | 1902.05628,1902.08408,etc |
| electric field | 499 | 143 | 3.486 | 0.002181 | 1902.05036,1902.05448,etc |
| edge state | 76 | 11 | 7.5 | 0.002147 | 1902.04001,1902.06697,etc |
| inertial range | 76 | 20 | 3.632 | 0.002102 | 1902.06666,1902.00079,etc |
| basis function | 142 | 36 | 4.029 | 0.002095 | 1902.09007,1902.03581,etc |
| Rydberg atom | 66 | 11 | 5.8 | 0.002086 | 1902.11063,1902.02989,etc |
| collective behavior | 26 | 11 | 2.4 | 0.002075 | 1902.05307,1902.02989,etc |
| analytical model | 42 | 17 | 2.5 | 0.002064 | 1902.01962,1902.06261,etc |
| field theory | 42 | 14 | 3.154 | 0.001954 | 1902.07135,1902.04076,etc |
| pure state | 79 | 13 | 6.417 | 0.001931 | 1902.04564,1902.04076,etc |
| film thickness | 54 | 13 | 4.417 | 0.001916 | 1902.08733,1902.00351,etc |
| neural network | 115 | 25 | 4.708 | 0.00189 | 1902.08589,1902.03336,etc |
| molecular orbital | 28 | 11 | 2.7 | 0.001888 | 1902.02134,1902.10673,etc |
| porous medium | 93 | 18 | 5.059 | 0.001873 | 1902.07577,1902.09899,etc |
| photon energy | 80 | 30 | 2.724 | 0.001868 | 1902.10137,1902.09418,etc |
| laser field | 71 | 23 | 3.136 | 0.001851 | 1902.04928,1902.09281,etc |
| detection efficiency | 41 | 16 | 2.667 | 0.001846 | 1902.08433,1902.03679,etc |
| energy resolution | 62 | 20 | 3.211 | 0.001795 | 1902.06083,1902.01234,etc |
| linear stability analysis | 33 | 16 | 2.133 | 0.001772 | 1902.04842,1902.08523,etc |
| dipole-dipole interaction | 29 | 11 | 2.3 | 0.001725 | 1902.05628,1902.02989,etc |
| Rabi frequency | 65 | 19 | 3.444 | 0.001717 | 1902.11063,1902.02989,etc |
| social network | 58 | 18 | 3.353 | 0.001712 | 1902.01266,1902.10035,etc |
| Rydberg state | 119 | 16 | 7.133 | 0.001681 | 1902.11063,1902.01087,etc |
| quantum mechanic | 140 | 48 | 2.957 | 0.001677 | 1902.00364,1902.04564,etc |
| effective Hamiltonian | 36 | 17 | 2.188 | 0.001667 | 1902.10137,1902.06444,etc |
| repetition rate | 79 | 26 | 2.64 | 0.00166 | 1902.06261,1902.01273,etc |
| Reynolds number | 190 | 60 | 3.203 | 0.001648 | 1902.04602,1902.05448,etc |
| Maxwell' equation | 88 | 32 | 2.806 | 0.001634 | 1902.05782,1902.08703,etc |
| particle density | 39 | 15 | 2.714 | 0.001627 | 1902.08470,1902.05787,etc |
| beam energy | 52 | 14 | 3.769 | 0.001624 | 1902.06083,1902.00260,etc |
| band structure | 51 | 19 | 2.667 | 0.001614 | 1902.04001,1902.06397,etc |
| cavity mode | 68 | 18 | 3.882 | 0.001599 | 1902.01282,1902.08509,etc |
| output power | 31 | 11 | 3.0 | 0.001596 | 1902.09821,1902.10392,etc |
| atomic ensemble | 39 | 11 | 3.8 | 0.001589 | 1902.02989,1902.05337,etc |
| time-reversal symmetry | 31 | 13 | 2.5 | 0.001582 | 1902.05628,1902.04001,etc |
| nonlinear term | 64 | 29 | 2.179 | 0.001525 | 1902.08523,1902.06559,etc |
| complex network | 79 | 22 | 3.667 | 0.001497 | 1902.00035,1902.01266,etc |
| laser beam | 104 | 50 | 2.061 | 0.001482 | 1902.05628,1902.09281,etc |
| modulation frequency | 32 | 12 | 2.545 | 0.001465 | 1902.02993,1902.04536,etc |
| quantum system | 105 | 44 | 2.419 | 0.001448 | 1902.06910,1902.04564,etc |
| momentum space | 41 | 17 | 2.438 | 0.001446 | 1902.05782,1902.06697,etc |
| electrical conductivity | 39 | 11 | 3.8 | 0.001433 | 1902.00371,1902.07960,etc |
| kinetic equation | 51 | 13 | 4.083 | 0.001392 | 1902.08311,1902.06814,etc |
| unstable mode | 46 | 13 | 3.75 | 0.001385 | 1902.06910,1902.04842,etc |
| training dataset | 32 | 11 | 3.1 | 0.001359 | 1902.10379,1902.00091,etc |
| liquid water | 42 | 11 | 4.1 | 0.001338 | 1902.06207,1902.04468,etc |
| boundary condition | 606 | 174 | 3.497 | 0.001334 | 1902.06910,1902.06665,etc |
| initial velocity | 31 | 14 | 2.077 | 0.001328 | 1902.04034,1902.07317,etc |
| volume fraction | 68 | 18 | 3.824 | 0.001326 | 1902.05448,1902.04842,etc |
| temperature difference | 62 | 12 | 5.545 | 0.001321 | 1902.08311,1902.00553,etc |
| numerical stability | 56 | 21 | 2.6 | 0.001315 | 1902.04842,1902.07317,etc |
| cost function | 31 | 12 | 2.455 | 0.001308 | 1902.09821,1902.03654,etc |
| nonlinear system | 58 | 17 | 3.562 | 0.001304 | 1902.05874,1902.01969,etc |
| temporal profile | 34 | 13 | 2.75 | 0.001289 | 1902.02038,1902.09882,etc |
| thermal fluctuation | 51 | 17 | 3.0 | 0.001241 | 1902.07135,1902.04410,etc |
| flow rate | 81 | 23 | 3.636 | 0.00124 | 1902.07577,1902.09899,etc |
| normal stress | 27 | 11 | 2.6 | 0.001227 | 1902.09899,1902.08361,etc |
| wave frequency | 26 | 11 | 2.5 | 0.001222 | 1902.10594,1902.04034,etc |
| evolution equation | 87 | 29 | 3.071 | 0.00122 | 1902.06910,1902.05598,etc |
| two-level system | 31 | 12 | 2.636 | 0.001213 | 1902.08066,1902.06283,etc |
| Stokes flow | 38 | 16 | 2.467 | 0.001207 | 1902.09899,1902.03342,etc |
| fluid velocity | 88 | 27 | 3.346 | 0.001205 | 1902.09899,1902.04842,etc |
| Fokker-Planck equation | 48 | 13 | 3.917 | 0.001201 | 1902.06697,1902.02038,etc |
| laser cooling | 55 | 13 | 4.25 | 0.001177 | 1902.05628,1902.08701,etc |
| total length | 27 | 13 | 2.167 | 0.001176 | 1902.01266,1902.03446,etc |
| thin film | 57 | 14 | 4.308 | 0.001173 | 1902.04656,1902.06983,etc |
| photon number | 38 | 13 | 3.083 | 0.00117 | 1902.03654,1902.09281,etc |
| electron energy | 41 | 20 | 2.053 | 0.001167 | 1902.04771,1902.01234,etc |
| single photon | 52 | 26 | 2.04 | 0.001163 | 1902.03654,1902.09281,etc |
| flow field | 88 | 40 | 2.205 | 0.00116 | 1902.06665,1902.09899,etc |
| initial datum | 52 | 17 | 3.188 | 0.001138 | 1902.10379,1902.07317,etc |
| interaction term | 45 | 19 | 2.444 | 0.001121 | 1902.09398,1902.05307,etc |
| laboratory experiment | 42 | 20 | 2.158 | 0.001117 | 1902.00351,1902.07445,etc |
| energy cascade | 44 | 14 | 3.308 | 0.001115 | 1902.04842,1902.06214,etc |
| spatial profile | 24 | 11 | 2.3 | 0.001112 | 1902.10678,1902.04409,etc |
| present model | 58 | 21 | 2.7 | 0.001091 | 1902.09296,1902.06910,etc |
| density operator | 37 | 12 | 3.0 | 0.001088 | 1902.00206,1902.01667,etc |
| imaginary part | 166 | 69 | 2.426 | 0.001084 | 1902.10137,1902.05782,etc |
| random number | 35 | 17 | 2.125 | 0.001075 | 1902.08701,1902.04120,etc |
| velocity fluctuation | 50 | 24 | 2.087 | 0.001069 | 1902.07445,1902.10598,etc |
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