Related by context. Frequent words. (Click for all words.) 60 magnetization 59 spacetime 58 isotropic 57 photonic crystal 56 anisotropic 56 GPa 56 bosons 55 Brownian motion 55 Earth magnetosphere 55 conductance 55 magnetic flux 55 anisotropy 54 quantum mechanical 54 superfluid 54 crystal lattice 54 torus 54 atomic nuclei 54 QCD 53 absorbance 53 excitons 53 ferromagnetic 53 amplitudes 52 dipole 52 magnetic fields 52 electron 52 refractive index 52 magnetic 52 microscale 52 rubidium 52 atoms 52 femtosecond 51 angular momentum 51 toroidal 51 quanta 51 radiative 51 positron 51 ionized gas 51 nanoscopic 51 interferometry 51 atomic nucleus 51 electron spin 51 hydrogen atom 51 interstellar medium 51 oxygen atom 51 antiprotons 51 accretion disk 51 reactants 51 spatial dimensions 51 superposition 51 sinusoidal 51 GeV 51 magnetosphere 51 biomolecule 51 ejecta 50 Bose Einstein condensate 50 photodetector 50 z = 50 phonons 50 dopants 50 scalar 50 qubit 50 Supplementary Fig 50 gravitational 50 radially 50 photons 50 singularities 50 magnetar 50 laser pulse 50 electrons 50 hydrogen atoms 50 radioactive decay 50 fermions 50 visible wavelengths 50 logarithmic 50 numerical simulations 50 neutrons 50 temperature gradient 50 dynamical 50 wavefront 50 coronal 49 X ray emission 49 quantum mechanics 49 dimer 49 alpha particles 49 resonant frequency 49 heliosphere 49 picosecond 49 parallax 49 muon 49 relativistic 49 overpressure 49 photon 49 superconducting 49 topological 49 resonator 49 nanotube 49 nuclei 49 vortices 49 optical microscopy 49 diffraction 49 hemispherical