Related by context. Frequent words. (Click for all words.) 68 superposition 67 crystal lattice 66 spacetime 65 atoms 65 magnetization 64 anisotropy 63 isotropic 63 torus 63 quantum mechanical 63 phonons 63 excitons 62 superfluid 62 qubit 62 fermions 62 chirality 61 photons 61 photonic crystal 61 Bose Einstein condensate 61 dynamical 61 anisotropic 60 ferromagnetic 60 nuclei 60 dimer 60 conductance 60 electrons 60 entropy 60 symmetries 59 Brownian motion 59 electron 59 Supplementary Fig 59 quantum mechanics 59 invariant 59 atomic nucleus 58 macroscopic 58 photon 58 helices 58 perturbation 58 subatomic 58 topological 58 magnetic flux 58 atomic nuclei 58 electron spin 58 dimers 58 amplitudes 57 hydrogen atom 57 conformations 57 GPa 57 z = 57 picosecond 57 dipole 57 radiative 57 magnetar 57 nucleation 57 Fig. 57 neutrons 56 vortices 56 adenine 56 interferometry 56 conformational 56 morphologies 56 cosmological constant 56 galaxy formation 56 perturbations 56 quantum theory 56 oxygen atom 56 oxygen atoms 56 nanoscopic 56 ferroelectric 56 Gaussian 56 qubits 56 muon 56 high temperature superconductivity 55 electron beams 55 interfacial 55 vibrational 55 magnetic fields 55 atom 55 transduction 55 hydrogen atoms 55 Earth magnetosphere 55 oscillation 55 positron 55 biological molecules 55 radioactive decay 55 sinusoidal 54 fullerene 54 accretion disk 54 superconductivity 54 PrP 54 quark gluon plasma 54 voxel 54 SWNTs 54 simultaneity 54 logarithmic 54 particle 54 muons 54 quantum 54 analyte 54 multiverse 54 chiral 54 polarity