Related by context. Frequent words. (Click for all words.) 72 oscillations 66 perturbation 59 excitation 59 magnetization 58 amplitudes 58 perturbations 57 oscillating 57 Brownian motion 56 conductance 56 pulsations 56 hysteresis 56 resonant frequency 55 irradiance 55 cyclic 54 dimer 54 isotropic 54 amplitude 54 pulsation 54 dipole 53 atmospheric circulation 53 North Atlantic Oscillation 53 sinusoidal 53 invariant 52 picosecond 52 conformational 52 radiative 52 nucleation 52 sine wave 52 fluxes 52 X ray emission 52 resonator 52 vibrational 51 deformation 51 polarity 51 anisotropy 50 geomagnetic field 50 macroscopic 50 dynamical 50 magnetic fields 50 auroral 50 convective 50 phonons 50 resonators 50 oscillate 49 spacetime 49 entrained 49 resonances 49 photonic crystal 49 aerosol particles 49 picoseconds 49 chirality 49 superposition 49 muon 49 angular momentum 49 msec 49 magnetic flux 49 substorms 49 sunspot activity 49 bandgap 49 kinematic 49 torsional 49 precession 48 superfluid 48 lithosphere 48 atoms 48 temperature gradient 48 vortices 48 interferometer 48 upwelling 48 magnetosphere 48 frictional 48 ferroelectric 48 laser pulse 48 crystal lattice 48 modulation 48 attenuation 48 magnetar 48 anion 47 vibration 47 periodicity 47 convection 47 anisotropic 47 interferometry 47 fermions 47 ferromagnetic 47 cosmic ray 47 GPa 47 filament 47 laser pulses 47 neuronal activity 47 actuator 47 windings 47 inertial 47 femtoseconds 47 torques 47 supernova explosion 47 helices 47 dimers 47 crustal 46 rubidium 46 tuning fork