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(Click for frequent words.) 72 atoms 58 atomic nucleus 58 electrons 57 hydrogen atoms 57 neutrons 57 electron 57 nuclei 56 atomic nuclei 55 exciton 55 ions 55 wavefunction 55 Rydberg atoms 55 electron spins 55 antiparticle 55 pentacene molecule 55 Rydberg atom 54 orbitals 54 hydrogen atom 54 electron spin 54 oxygen atoms 54 molecule 53 Atoms 53 subatomic 53 Mott insulator 52 alpha particle 52 oxygen atom 52 particle 52 photon 52 quark 52 optical resonator 52 meson 52 crystal lattice 52 subatomic particles 52 emit photon 52 electron density 52 polaritons 52 sodium atoms 51 photons 51 spacetime 51 atomic particles 51 rubidium atom 51 rubidium atoms 51 helium atoms 51 hydrogen nuclei 51 neutralinos 51 hyperfine 51 magnetic anisotropy 51 protons 51 chlorine atom 51 optical lattice 51 fermion 51 electronic excitations 51 quantum particle 51 bosons 51 Planck constant 50 magnetic fields 50 fermions 50 atomic 50 cesium atoms 50 cesium atom 50 valence electrons 50 cobalt atom 50 sulfur atoms 50 proton 50 quantum dot 50 electrons orbiting 50 particles 50 radioactive decay 50 phonon 50 qubit 50 neutron 50 nucleons 50 subatomic particle 50 Bose Einstein condensates 50 excitons 50 magnetic monopoles 50 hydrogens 49 nanoscale 49 bosonic 49 photoemission 49 nucleon 49 massless particles 49 quarks 49 carbon atoms 49 quasicrystal 49 muon 49 ab initio calculations 49 quantum superposition 49 dimer 49 hadrons 49 fermionic atoms 48 strange quark 48 superatoms 48 molecules 48 weakly interacting 48 absorb neutrons 48 absorbs photon 48 alpha particles 48 beryllium ion 48 axions 48 boson 48 nanoworld 48 W boson 48 ultracold atoms 48 intramolecular 48 SUSY 48 phytochrome 48 nanoclusters 48 superheavy element 48 ferromagnetic 48 antiproton 48 ultracold 48 nanocrystal 48 quantum mechanics 48 silicon atoms 48 nanocrystals 48 antimatter particles 48 force microscopy AFM 48 helium nuclei 48 graviton 48 laser pulse 48 electromagnetism 48 dye molecules 48 fission fusion 48 diatomic 47 neutrino 47 ultracold gas 47 unpaired electron 47 vibrational modes 47 fissioning 47 titanium oxide 47 nitrogen atoms 47 electric dipole 47 Neutrons 47 scanning tunneling microscope 47 superfluid 47 emits photon 47 helium atom 47 crystallites 47 graphene 47 antiparticles 47 dopants 47 positron 47 buckyball 47 X ray pulses 47 atomic lattice 47 gravitons 47 graphene layers 47 intermolecular 47 ion traps 47 surface plasmon 47 carbene 47 proton proton collisions 47 crystalline structure 47 antihydrogen 47 neutralino 47 electron orbiting 47 ferroelectricity 47 boron atoms 47 electron volt 47 excitations 47 nanometric 47 ferromagnets 47 Z bosons 47 antiprotons 47 tetrahedral 47 attosecond 47 nanostructure 47 metastable 47 ferromagnet 47 tokamak 47 superlens 47 Bose Einstein Condensate 47 fullerene 47 mesons 47 quantum mechanical 47 rubidium vapor 47 quantum oscillations 47 antihelium 4 47 antiferromagnets 47 nanometer sized 46 dipolar 46 ion 46 carbon atom 46 supersymmetric 46 antiquarks 46 hydrogen ions 46 galactic disk 46 magnetic excitations 46 xenon atoms 46 antineutrino 46 scanning tunneling microscopy 46 solar neutrinos 46 gluon 46 nanorod 46 fission reactor 46 optical lattices 46 photon beam 46 electrons protons 46 electrons behave 46 Fermions 46 hydrino 46 quantum tunneling 46 phonons 46 quantum mechanically 46 antiquark 46 Z boson 46 Higgs bosons 46 solitons 46 silicon monoxide 46 antimatter atoms 46 thermonuclear fusion 46 Muons 46 hadron 46 leptons 46 magnetic monopole 46 cesium ions 46 catalytically active 46 crystallite 46 colloidal particles 46 multiferroic 46 ions electrically charged 46 spherical particles 46 plasmons 46 dimers 46 strontium atoms 46 covalent bond 46 magnetization 46 proton neutron 46 baryon 46 B mesons 46 dihydrogen 46 sulfur atom 46 ceria 46 Bose Einstein condensate 46 quasiparticles 46 picosecond 46 electron microscope 46 superconductivity 46 pions 46 deuterium nuclei 46 dipole moment 46 ultracold molecules 46 BaBar experiment 46 neutron beam 46 antiparallel 46 force microscope AFM 46 superheavy elements 46 relativistic particles 46 delocalized 45 crystalline lattice 45 magnetic vortices 45 nanoscopic 45 nanometer scale 45 Ultracold 45 scanning tunneling microscope STM 45 quanta 45 Optical tweezers 45 Neutrinos 45 antineutrinos 45 protons neutrons 45 van der Waals forces 45 lattice vibrations 45 deuterium atoms 45 helium ions 45 elastic deformation 45 matter antimatter asymmetry 45 nanowire 45 cobalt atoms 45 superatom 45 entangled photons 45 pseudogap 45 conduction electrons 45 superstrings 45 phosphorus atom 45 superfluids 45 Higgs particle 45 photonic crystal 45 Alfvén waves 45 spontaneous fission 45 diffraction pattern 45 post perovskite 45 magnetosphere 45 MRFM 45 magnetic dipoles 45 nanosized 45 GZK cutoff 45 phosphorus atoms 45 kaons 45 antiferromagnetic 45 walled carbon nanotube 45 infrared laser pulses 45 graphene sheet 45 covalent bonds 45 decoherence 45 californium 45 supersolid 45 gravitationally 45 porphyrin 45 promethium 45 Bose Einstein condensation 45 nanomagnets 45 dimensional electron 45 electron transistor 45 sterile neutrinos 45 triangular lattice 45 electroweak 45 atomic fission 45 microwave photon 45 chromophore 45 ring resonators 45 hydrides 45 toroid 45 protoplanetary disk 45 magnetic resonance NMR spectroscopy 45 excitation 44 organic molecules 44 AGNs 44 macrocycle 44 pion 44 lithium atoms 44 muon neutrino 44 chemical reactions 44 merging galaxies 44 nanodot 44 electron neutrinos 44 terahertz radiation 44 nanoparticle 44 fissionable 44 manganese atoms 44 Saturn magnetosphere 44 silicates 44 nanotube 44 fundamental constants 44 nanomotors 44 Upsilon Andromedae 44 scanning tunneling microscopes 44 electron pairs 44 neutrinos 44 quantum phenomena 44 valence electron 44 unpolarized 44 muons 44 strange quarks 44 neutron star 44 electron ion 44 beryllium ions 44 nano scale 44 alkali atoms 44 mesoscopic 44 graphane 44 ferroelectric 44 positrons 44 photon energies 44 nanocubes 44 electron orbits 44 quantum dots 44 protostar 44 ion microscope 44 electrical conductance 44 galaxies 44 ion beam 44 photons particles 44 osmium 44 radial velocity method 44 vanadium dioxide 44 molecular orbitals 44 atomic orbitals 44 cuprate superconductors 44 Hawking radiation 44 ferromagnetism 44 silica spheres 44 electron beams 44 supersymmetric particles 44 hafnium 44 B meson 44 supramolecular 44 dopant atoms 44 ionise 44 nanodevice 44 electron orbitals 44 gamma rays emitted 44 Einstein cosmological constant 44 fissions 44 WIMPs 44 soliton 44 pnictides 44 micrometer 44 asymptotic freedom 44 isotropic 44 hydrophobic interactions 44 fission 44 proton proton 44 protoplanet 44 antihydrogen atoms 44 germanium silicon 44 photons emitted 44 Gravitational waves 44 quantum bits 44 extrasolar planet 44 nano sized 44 nanodots 44 HD#b 44 CERN LHC 44 nanopillars 44 electron scattering 44 topological defects 44 surface plasmons 44 graphene sheets 44 crystal lattices 44 qubit quantum 44 electron electron 44 molecular 43 nanostructures 43 plasmonic 43 filaments 43 trimers 43 fermionic 43 buckyballs 43 polariton 43 bandgap 43 electrostatic repulsion 43 oppositely charged 43 baryons 43 high temperature superconductors 43 trillionth 43 strontium titanate 43 superposition 43 silicate dust 43 electrochemical 43 actinide 43 Higgs singlet 43 van der Waals 43 galaxy cluster 43 Dirac fermions 43 galactic cores 43 magnetic dipole 43 Oganessian 43 colliding protons 43 Electrons 43 peewee hockey 43 hyperpolarization 43 plasmon 43 smashing protons 43 infalling 43 superpositions 43 layer graphene 43 vibrational 43 cuprates 43 Earth magnetosphere 43 electron proton 43 antimatter 43 photoelectron 43 fission reactions 43 UV photons 43 antibody antigen 43 nanotubes 43 Pauli exclusion 43 riboswitch 43 quasicrystals 43 solar nebula 43 force microscopes AFMs 43 Neutron scattering 43 particle colliders 43 J# +# [002] 43 type Ia supernova 43 gravitational attraction 43 Atom 43 adatoms 43 Maxwell equations 43 superconducting 43 dopant 43 topological insulators 43 vibrational frequency 43 photon beams 43 quantum electrodynamics 43 hydride 43 photon fluorescence 43 photosphere 43 electromagnet 43 adsorbate 43 electrochemical reactions 43 physicists 43 Higgs boson particle 43 valence band 43 Super Kamiokande 43 photoelectron spectroscopy 43 infall 43 semiconducting material 43 amide 43 GeV 43 atom smashers 43 DNA double helix 43 quantum theory 43 Alfven waves 43 self assembled monolayer 43 emits photons 43 semiconducting 43 bilayer 43 nanoantennas 43 electromagnetic 43 photoelectrochemical 43 titania 43 sub Angstrom 43 alkane 43 billionths 43 antihelium 43 electron accelerator 43 protons electrons 43 perovskites 43 anodic 43 brane 43 positronium 43 macromolecule 43 electron positron 43 vibrational frequencies 43 wave particle duality 43 chlorophyll molecules 43 GJ #b [001] 43 silicate grains 43 interstellar clouds 43 Subatomic particles 43 hydrogen 43 Quantum mechanics 43 spherically symmetric 43 femtosecond laser pulse 43 Milky Way halo 43 colliders 43 nonconducting 43 pentaquark 43 impurity atoms 43 quasiparticle 43 moonlet 43 meV 43 noble gases 43 isotope 43 fluorescence spectra 43 quark gluon plasma 42 diamond anvil 42 magnons 42 uranium deuteride 42 laser excitation 42 RHIC 42 polystyrene spheres 42 superposed 42 spectroscopic techniques 42 excitation energies 42 branes 42 electron positron pairs 42 quantum 42 chirality 42 electron neutrino 42 synchrotron X ray 42 sister chromatids 42 biomolecule 42 Smaller colliders 42 blue straggler 42 room temperature colliders 42 interparticle 42 theoretical particle 42 CdSe 42 NWs 42 perovskite 42 micrometer scale 42 atom thick 42 spectroscope 42 radiative recombination 42 torus 42 Magnetic reconnection 42 quantum particles 42 catoms 42 collisional 42 zinc ions 42 nano 42 Brookhaven Relativistic Heavy 42 crystallographic 42 spin excitations 42 Brownian motion 42 spectroscopic analysis 42 pn junctions 42 God Particle 42 ion beams 42 positronium atoms 42 accretion disk 42 tholins 42 organometallic 42 blue supergiant 42 nano particles 42 neutron beams 42 interatomic 42 Photons 42 planets orbits 42 dynamical evolution 42 piconewtons 42 nanotube transistors 42 LHC accelerator 42 nanomechanical 42 nanoholes 42 microcavities 42 GPa 42 diffraction limit 42 tau neutrinos 42 semiconductor nanocrystals 42 chromophores 42 neutron stars 42 semiconducting nanowires 42 Hadron Collider 42 Hydrogen atoms 42 orbital angular momentum 42 rotaxane 42 hydrogenase 42 tetrahedra 42 femtosecond timescale 42 galaxy 42 angstroms 42 proton accelerator 42 XP fip5 ~ 42 quantum chromodynamics 42 cosmic ray 42 nonradioactive 42 nanosize 42 planet Uranus 42 interstellar medium 42 entangled quantum 42 cuprate 42 Schrödinger cat 42 laser pulses 42 micromachine 42 filament 42 microcavity 42 spherical nanoparticles 42 laser spectroscopy 42 galactic clusters 42 isomeric 42 scanning microscopy 42 gravitational interaction 42 Quantum entanglement 42 scintillator 42 vibrationally excited 42 electron beam 42 radioactive nuclei 42 fermion atoms 42 lepton 42 nanopore 42 cerium oxide 42 nuclear fission 42 periodicities 42 Milky Way 42 nanoprobe 42 transistor 42 helical structures 42 alkali metal 42 scale invariance 42 photonic circuits 42 nitrogen atom 42 chondrites 42 mesoporous 42 electron pairing 42 resonator 42 boron nitride 42 submicroscopic 42 W bosons 42 millionths 42 parahydrogen 42 diffraction patterns 42 supernova 42 refractive index 42 stilbene 42 multilayers 42 strangelets 42 potassium atoms 42 fermionic condensate 42 monolayers 42 messenger RNA molecules 42 V# Sgr 42 bucky balls 42 macroscopic objects 42 spectroscopy 42 rotaxanes 42 donor acceptor 41 baryonic 41 photocatalyst 41 DNA strands 41 ZPE 41 magnetic flux 41 superdense 41 observable universe 41 Virgo cluster 41 momenta 41 Orillia Terriers 41 alkynes 41 exoplanet 41 cosmological constant 41 particle collisions 41 chiral molecules 41 crystals 41 controllably 41 ionised 41 GJ #b [002] 41 EBNA1 41 elliptical galaxy 41 magnetic reconnection 41 photothermal 41 nanosecond pulse 41 Bullet Cluster 41 exoplanetary 41 chondrules 41 SMBHs 41 tractor beam 41 quantum correlations 41 supernovae 41 cesium vapor 41 diamagnetic 41 berkelium 41 lanthanides 41 particle accelerator 41 gravitational pulls 41 electron volts 41 VHE gamma rays 41 femtosecond 41 qubits 41 HM Cancri 41 tetragonal 41 atomically smooth 41 Einstein equations 41 nanorods 41 keV 41 magma ocean 41 lattice 41 anion 41 Earthlike 41 resonance frequency 41 chlorophyll molecule 41 electron tunneling 41 Crab pulsar 41 macroscopic quantum 41 nebular 41 relativity theory 41 graphene flakes 41 spectra 41 supermassive black hole 41 dispersive 41 infrared laser beam 41 Attosecond 41 neutron diffraction 41 gluons 41 active galactic nuclei 41 gold nanoclusters 41 nanowires 41 chemically reactive 41 fission yeast 41 photolysis 41 magnetic coupling 41 WASP #b 41 bilayer graphene 41 singularities 41 silicate minerals 41 photosystem 41 actin binding 41 quantum entanglement 41 nanoparticles 41 comet 41 filamentary 41 semiconducting carbon nanotubes 41 Neutron stars 41 tokamaks 41 hydrogen helium 41 Earth crust 41 YBCO 41 scanning electron microscopes 41 NobleKing 41 diffract 41 disulfide bond 41 HL Tau 41 chiral 41 protons collide 41 dynamical 41 peewees 41 planets 41 droplet 41 ultraviolet photons 41 photodetector 41 graphene nanoribbon 41 powered icebreaker Rossiya 41 quantum bits qubits 41 ionizing 41 evanescent waves 41 catalysis 41 deuterium 41 emit X rays 41 gravity electromagnetism 41 ultracold temperatures 41 paramagnetic 41 spintronic device 41 nickel alloy 41 ferric iron 41 magnetic nanoparticles 41 tetrahedron 41 shorter wavelengths 41 ionized gas 41 cavity QED 41 Keck Interferometer 41 hydroxide ions 41 electromagnetic flux 41 Cerenkov radiation 41 Wolf Rayet stars 41 conformations 41 nanodiamond 41 quantized 41 microwave photons 41 elementary particle physics 41 quantum optics 41 circular dichroism 41 aluminum oxide 41 Qubits 41 ultradense 41 adsorbed 41 spintronic devices 41 angstrom 41 electrically conducting 41 molecule spectroscopy 41 Cosmic Microwave Background CMB 41 oxide nanowires 41 unpaired electrons 41 titania nanotubes 41 biological molecules 41 nanocluster 41 nanometers billionths 41 lipid membranes 41 magnon 41 nanoscale dimensions 41 globular clusters 41 tiniest particles 41 ATLAS detector 41 X ray crystallography 41 photon absorption 41 BECs 41 Fermilab Tevatron 41 semiconductor quantum dots 41 frictional heating 41 optical atomic clocks 41 quadrillionths 41 BaBar 41 duplicated chromosomes 41 superlattice 41 perturbation theory 41 electrochemical reaction 41 interphase 41 exoplanet orbiting 41 high temperature superconductivity 41 micron sized 41 photochemical reactions 41 microscale 41 nanomechanics 41 galaxy clusters 41 nanobelts 41 electron diffusion 41 stellar seismology 41 heterostructures 41 transmission electron microscope 41 peewee AE 41 Kuiper belt 41 photocatalysts 41 particles WIMPs 41 nucleation 41 manipulating atoms 41 Oort Cloud 41 uracil 41 nanoglue 41 stoichiometry 41 LOV domain 41 hyperpolarized xenon 41 rocky planets 41 membrane protein 41 spontaneous symmetry 41 microstructures 41 GJ#b 41 photochemistry 41 nanoelectromechanical 41 gamma rays 41 infinities 41 peewee 41 ultrananocrystalline diamond 41 ferromagnetic materials 41 microcantilever 41 ARPES 41 photonic bandgap 40 micrometer sized 40 magnetic resonance spectroscopy 40 RNA molecules 40 superluminal 40 nucleosynthesis 40 macroscopic 40 SMBH 40 vortices 40 Epsilon Eridani 40 metalloproteins 40 titanium atoms 40 particle smasher 40 microcrystals 40 iron pnictides 40 electron microscopy 40 fissionable uranium 40 atomically sharp 40 circumstellar disks 40 substorm 40 radioisotope 40 extrasolar 40 absorbs neutrons 40 orbital resonance 40 neutral mass spectrometer 40 Schrodinger equation 40 emission spectrometry 40 magnetisation 40 Memristors 40 lattice spacing 40 superconducting qubits 40 distant galaxies 40 elusive Higgs 40 zeolites 40 self assembled monolayers 40 buckminsterfullerene 40 pentacene 40 Peter Grünberg 40 gravitational radiation 40 actin filament 40 dinitrogen 40 Bose Einstein condensate BEC 40 Casimir cavity 40 nanolaser 40 excitonic 40 piezoelectric crystal 40 fluorophores 40 SSRL 40 Gamma rays 40 millisecond pulsar 40 oxygens 40 fullerenes 40 interferometry 40 X ray beam 40 Fermi 40 unconventional superconductivity 40 resonant tunneling 40 supermassive black holes 40 Mott insulators 40 yttrium barium copper 40 Saturn rings 40 multiverse 40 circumstellar 40 accretion disks 40 icosahedral 40 dwarf galaxy 40 allotrope 40 electrons emitted 40 nanosheets 40 centromeric 40 attosecond pulse 40 1μm 40 NanoSIMS 40 emits gamma rays 40 multipartite entanglement 40 ZnO 40 terawatt 40 galaxies collide 40 emission spectroscopy 40 x ray pulses 40 supernova explosions 40 crystalline solids 40 zirconium oxide 40 magnetic bead 40 absorption spectroscopy 40 ribozyme 40 γ 40 biomineralization 40 photoionization 40 ionize 40 electron positron collider 40 microfluidic chip 40 transfer FRET 40 superconductor 40 electron transistors 40 symmetries 40 ytterbium 40 diffracted 40 doped silicon 40 magnesium ion 40 halide 40 undiscovered particle 40 D meson 40 actinides 40 shear modulus 40 Quarks 40 reactant 40 mimivirus 40 ionic liquid 40 heterogeneous catalysts 40 protein subunits 40 elongated orbits 40 cosmic