| high Reynolds number | 33 | 16 | 2.133 | 0.005931 | 1907.00360,1907.07871,etc |
| probe beam | 88 | 13 | 7.083 | 0.005036 | 1907.05555,1907.12785,etc |
| solar wind | 194 | 22 | 9.19 | 0.004736 | 1907.02025,1907.00839,etc |
| magnetic field line | 77 | 27 | 2.808 | 0.004512 | 1907.11693,1907.08062,etc |
| electron beam | 142 | 22 | 6.714 | 0.004398 | 1907.13515,1907.03786,etc |
| phase modulation | 41 | 13 | 3.333 | 0.004183 | 1907.13002,1907.05477,etc |
| resonant mode | 97 | 15 | 6.643 | 0.003761 | 1907.03476,1907.00592,etc |
| black hole | 107 | 25 | 4.417 | 0.003476 | 1907.09487,1907.06597,etc |
| thermodynamic limit | 99 | 27 | 3.769 | 0.003459 | 1907.02144,1907.05069,etc |
| energy spectrum | 133 | 51 | 2.62 | 0.003141 | 1907.11693,1907.06075,etc |
| open system | 57 | 16 | 3.733 | 0.003132 | 1907.08437,1907.08219,etc |
| magnetic field | 1250 | 209 | 5.99 | 0.003125 | 1907.11693,1907.08480,etc |
| coherence time | 42 | 16 | 2.733 | 0.003048 | 1907.07602,1907.03575,etc |
| Poisson bracket | 109 | 13 | 5.083 | 0.002988 | 1907.12486,1907.11196,etc |
| phase noise | 52 | 11 | 3.6 | 0.002971 | 1907.10537,1907.02927,etc |
| grain boundary | 52 | 11 | 5.1 | 0.002936 | 1907.13509,1907.05732,etc |
| neural network | 416 | 67 | 6.288 | 0.002926 | 1907.09314,1907.05888,etc |
| fine structure | 81 | 22 | 3.81 | 0.002897 | 1907.00643,1907.00592,etc |
| current sheet | 67 | 12 | 6.0 | 0.002896 | 1907.02025,1907.05243,etc |
| relaxation time | 141 | 37 | 3.889 | 0.002877 | 1907.00047,1907.01616,etc |
| band structure | 111 | 28 | 3.963 | 0.002863 | 1907.00546,1907.11715,etc |
| Euler-Lagrange equation | 43 | 13 | 3.417 | 0.00286 | 1907.05732,1907.04785,etc |
| water molecule | 97 | 20 | 5.0 | 0.002832 | 1907.07683,1907.04914,etc |
| field gradient | 50 | 12 | 4.455 | 0.002817 | 1907.02089,1907.12954,etc |
| band gap | 147 | 27 | 5.538 | 0.002757 | 1907.00546,1907.11715,etc |
| energy resolution | 100 | 25 | 4.083 | 0.002737 | 1907.08039,1907.11715,etc |
| external magnetic field | 121 | 39 | 3.158 | 0.002686 | 1907.13059,1907.12248,etc |
| scale factor | 49 | 14 | 3.692 | 0.002661 | 1907.03538,1907.01614,etc |
| dipole-dipole interaction | 37 | 13 | 2.583 | 0.002638 | 1907.12248,1907.06904,etc |
| phase diagram | 129 | 33 | 3.844 | 0.002633 | 1907.04577,1907.12954,etc |
| single photon | 127 | 37 | 3.5 | 0.002551 | 1907.12539,1907.00643,etc |
| posterior distribution | 49 | 12 | 4.273 | 0.002536 | 1907.05307,1907.09987,etc |
| photon pair | 65 | 12 | 5.273 | 0.002484 | 1907.13352,1907.05555,etc |
| shock wave | 58 | 18 | 3.353 | 0.002482 | 1907.10447,1907.08219,etc |
| wave number | 140 | 39 | 3.553 | 0.002446 | 1907.11650,1907.12486,etc |
| surface tension | 149 | 37 | 3.806 | 0.002426 | 1907.09629,1907.06904,etc |
| phase space | 269 | 59 | 4.621 | 0.002422 | 1907.13515,1907.03322,etc |
| surface wave | 102 | 21 | 5.05 | 0.002376 | 1907.09629,1907.03476,etc |
| effective interaction | 41 | 12 | 3.636 | 0.002373 | 1907.02878,1907.12520,etc |
| principal quantum number | 37 | 13 | 2.667 | 0.00237 | 1907.13404,1907.06004,etc |
| Rydberg atom | 107 | 19 | 5.667 | 0.002311 | 1907.06004,1907.03853,etc |
| community structure | 75 | 16 | 4.933 | 0.002303 | 1907.02416,1907.10453,etc |
| singular value | 70 | 15 | 4.286 | 0.002298 | 1907.01664,1907.03496,etc |
| acoustic wave | 72 | 21 | 3.45 | 0.002273 | 1907.03476,1907.07094,etc |
| classical mechanic | 44 | 18 | 2.529 | 0.002265 | 1907.03322,1907.00361,etc |
| unstable mode | 49 | 16 | 2.667 | 0.002265 | 1907.10769,1907.05319,etc |
| flow regime | 43 | 12 | 3.818 | 0.002251 | 1907.06075,1907.00029,etc |
| laser pulse | 196 | 39 | 5.132 | 0.002231 | 1907.00911,1907.00643,etc |
| interaction energy | 76 | 20 | 2.684 | 0.002202 | 1907.06904,1907.06636,etc |
| extreme event | 65 | 13 | 4.5 | 0.002188 | 1907.08187,1907.01753,etc |
| distribution function | 171 | 47 | 3.674 | 0.002172 | 1907.04577,1907.01365,etc |
| gravitational wave | 63 | 21 | 3.1 | 0.002171 | 1907.05224,1907.08198,etc |
| film thickness | 54 | 17 | 3.312 | 0.00216 | 1907.13559,1907.05260,etc |
| normal mode | 112 | 26 | 4.36 | 0.002118 | 1907.03575,1907.05624,etc |
| hyperfine structure | 40 | 12 | 3.364 | 0.002097 | 1907.00729,1907.03853,etc |
| energy distribution | 56 | 18 | 3.235 | 0.002087 | 1907.05624,1907.06636,etc |
| phase speed | 39 | 12 | 3.091 | 0.00207 | 1907.11650,1907.08168,etc |
| flow rate | 126 | 23 | 5.636 | 0.002064 | 1907.00047,1907.10817,etc |
| Ising model | 48 | 12 | 4.0 | 0.002059 | 1907.05732,1907.12494,etc |
| glass substrate | 41 | 11 | 4.0 | 0.002042 | 1907.03476,1907.01961,etc |
| particle acceleration | 53 | 12 | 4.727 | 0.002022 | 1907.11693,1907.12958,etc |
| time delay | 93 | 42 | 2.244 | 0.002014 | 1907.05555,1907.00145,etc |
| Rydberg state | 121 | 21 | 5.8 | 0.00201 | 1907.13404,1907.06004,etc |
| dielectric function | 45 | 14 | 2.692 | 0.001993 | 1907.00546,1907.11715,etc |
| survival probability | 69 | 14 | 5.231 | 0.001943 | 1907.01074,1907.05184,etc |
| optical mode | 80 | 16 | 5.133 | 0.001928 | 1907.00911,1907.00592,etc |
| reference datum | 49 | 14 | 3.692 | 0.001927 | 1907.12823,1907.06954,etc |
| space charge | 42 | 11 | 4.1 | 0.001922 | 1907.13515,1907.10497,etc |
| social network | 157 | 34 | 4.727 | 0.001912 | 1907.13096,1907.07406,etc |
| force field | 54 | 17 | 3.312 | 0.001911 | 1907.08480,1907.04914,etc |
| periodic orbit | 78 | 12 | 6.727 | 0.001907 | 1907.03322,1907.09421,etc |
| major axis | 25 | 11 | 2.4 | 0.001856 | 1907.13352,1907.07932,etc |
| energy density | 133 | 50 | 2.694 | 0.001847 | 1907.06075,1907.03538,etc |
| covariance matrix | 47 | 16 | 3.067 | 0.001828 | 1907.12259,1907.13371,etc |
| light pulse | 31 | 14 | 2.154 | 0.001827 | 1907.01553,1907.04947,etc |
| wave function | 225 | 72 | 3.127 | 0.00182 | 1907.00643,1907.05466,etc |
| phase shift | 121 | 51 | 2.4 | 0.00182 | 1907.05466,1907.08253,etc |
| dispersion curve | 52 | 16 | 3.4 | 0.001805 | 1907.09330,1907.09813,etc |
| Feshbach resonance | 27 | 11 | 2.6 | 0.001803 | 1907.11226,1907.00729,etc |
| degree distribution | 112 | 28 | 4.111 | 0.001787 | 1907.13096,1907.02416,etc |
| Poisson equation | 60 | 20 | 3.105 | 0.001761 | 1907.04940,1907.01724,etc |
| atomic position | 35 | 15 | 2.286 | 0.001755 | 1907.06997,1907.07030,etc |
| Rayleigh number | 60 | 11 | 5.9 | 0.001749 | 1907.00049,1907.03496,etc |
| ground state energy | 29 | 12 | 2.545 | 0.001745 | 1907.03906,1907.11862,etc |
| wave packet | 89 | 25 | 3.583 | 0.001738 | 1907.05466,1907.08967,etc |
| electron dynamic | 45 | 16 | 2.333 | 0.001734 | 1907.11693,1907.01074,etc |
| time resolution | 80 | 26 | 2.96 | 0.00172 | 1907.00911,1907.12958,etc |
| temperature change | 36 | 11 | 3.5 | 0.001718 | 1907.08253,1907.08443,etc |
| percolation threshold | 37 | 11 | 3.6 | 0.001706 | 1907.13096,1907.00360,etc |
| transmission spectrum | 33 | 13 | 2.583 | 0.001704 | 1907.05555,1907.09057,etc |
| work function | 32 | 11 | 2.7 | 0.001696 | 1907.08290,1907.04947,etc |
| heat transfer | 86 | 17 | 4.75 | 0.001691 | 1907.00049,1907.03000,etc |
| long-range interaction | 58 | 24 | 2.478 | 0.00169 | 1907.04914,1907.02144,etc |
| linear theory | 34 | 12 | 3.0 | 0.001688 | 1907.04878,1907.03857,etc |
| order parameter | 164 | 29 | 5.786 | 0.001671 | 1907.09629,1907.03906,etc |
| photon number | 49 | 18 | 2.765 | 0.001669 | 1907.00145,1907.09517,etc |
| particle number | 49 | 15 | 3.429 | 0.001657 | 1907.00360,1907.01519,etc |
| local oscillator | 27 | 11 | 2.2 | 0.001656 | 1907.03575,1907.01553,etc |
| electron density | 139 | 53 | 2.635 | 0.001647 | 1907.02878,1907.02025,etc |
| United States | 43 | 21 | 2.05 | 0.00164 | 1907.04359,1907.02906,etc |
|