Related by context. Frequent words. (Click for all words.) 63 quadratic 61 logarithmic 61 quantized 58 invariant 58 anisotropy 57 quantization 56 sinusoidal 56 spacetime 56 Gaussian 55 polynomial 55 scalar 54 isotropic 54 anisotropic 54 fermions 54 entropy 54 dynamical 53 oscillatory 53 conductance 53 z = 53 symmetries 53 geometrical 53 rubidium 53 electron density 53 dispersive 53 kelvin 53 GPa 53 logarithms 53 covariance 53 magnetization 52 Fig. 1A 52 radiative forcing 52 bosons 52 voxel 52 quanta 52 excitations 52 singularities 52 toroidal 52 entropic 52 oscillation 52 photometry 52 topological 52 QCD 51 superposition 51 amplitude 51 Brownian motion 51 Bernoulli 51 mol 51 exciton 51 crystal lattice 51 amplitudes 51 radiative 51 dielectric constant 51 lithosphere 51 magnetic flux 50 electron spins 50 SiO 2 50 magmatic 50 linear regression 50 interfacial 50 torus 50 geometric 50 pulsations 50 dopant 50 Bose Einstein condensate 49 luminosity 49 frequency comb 49 chirality 49 anion 49 keV 49 absorbance 49 fractal 49 E = mc2 49 kinematic 49 superfluid 49 unobservable 49 van der Waals 49 roundness 49 quantum mechanical 49 indeterminacy 49 nonlinear 49 irradiance 49 refractive index 49 parameter 48 angular momentum 48 interferometry 48 y axis 48 isotopic composition 48 ordinal 48 modulus 48 phi 48 quantum gravity 48 Supplementary Fig 48 morphology 48 spatial dimensions 48 thermodynamic 48 muon 48 ferromagnetic 48 parallax 48 Fibonacci sequence 48 Hawking radiation 48 vibrational