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(Click for frequent words.) 69 electron 68 protons 65 atoms 65 electrons 63 nuclei 63 ions 63 photons 62 photon 62 neutrons 61 atomic nuclei 61 hydrogen atoms 61 hydrogen atom 61 particle 61 positrons 61 antiproton 60 molecule 60 muon 59 hydrogen nuclei 59 sodium atoms 59 helium atoms 59 antiparticle 58 deuterium atoms 58 positron 58 antiprotons 58 proton beam 58 rubidium atoms 58 excitons 57 nucleon 57 exciton 57 molecules 57 particles 56 alpha particles 56 laser pulse 56 subatomic particles 56 muons 56 helium ions 56 neutron star 56 W boson 56 magnetic flux 56 GeV 56 antiparticles 56 polaritons 55 fermion 55 angular momentum 55 magnetic fields 55 supermassive black hole 55 helium atom 55 particle beams 55 gravitational radiation 55 nucleons 55 antihydrogen 55 magnetization 55 meson 54 atomic particles 54 neutralinos 54 baryon 54 hadron 54 antimatter particles 54 dimer 54 supermassive black holes 54 electron spin 53 oxygen atoms 53 Bose Einstein condensate 53 electron beams 53 X ray pulses 53 quantum superposition 53 electron spins 53 proton beams 53 orbitals 53 qubit 53 helium nuclei 53 vibrationally excited 53 strange quark 53 polariton 53 Rydberg atom 53 nanomagnets 53 hydrogen ions 53 hyperfine 53 accretion disk 53 neutrino 53 spherical particles 53 magnetic nanoparticles 53 pions 53 ionised 53 nanocrystals 53 Earth magnetosphere 53 sodium ions 53 relativistic particles 53 calcium ions 53 quantum dot 53 Saturn magnetosphere 53 particle beam 53 neutron stars 53 photoionization 53 dipole moment 53 microbubbles 53 phonons 53 hadrons 53 melittin 52 fermions 52 conduction electrons 52 catalytically active 52 RHIC 52 superfluid 52 photon beams 52 zinc ions 52 gamma rays 52 galaxy clusters 52 macromolecule 52 dimers 52 gluon 52 photon energies 52 lipid membranes 52 ferromagnetic 52 protostar 52 orbital angular momentum 52 electron positron 52 nanoprobe 52 ionized 52 toroid 52 atomic nucleus 52 valence electron 52 rubidium vapor 52 weakly interacting 52 vesicle 52 subatomic particle 52 electric dipole 51 quasiparticles 51 neutron 51 electron neutrinos 51 WIMPs 51 anion 51 laser pulses 51 photon beam 51 antihelium 4 51 proton particles 51 optical lattice 51 alpha particle 51 ionized gas 51 galaxy cluster 51 filamentary 51 femtosecond laser pulse 51 molecular 51 superconductivity 51 proton proton 51 particle accelerators 51 plasmon 51 solvation 51 velocity dispersion 51 liposomes 51 potassium atoms 51 porphyrin 51 quantum correlations 51 proton accelerator 51 hydrogens 51 B meson 51 magnesium ions 51 mesons 51 delocalized 51 quantum particle 51 intermolecular 51 galaxies 51 ion 51 donor acceptor 51 gaseous 51 antineutrinos 51 electrons orbiting 51 lithium atoms 51 photons emitted 51 Big Bang atom smasher 51 micelles 51 oxygen atom 51 gravitationally 51 neutron beam 51 neutrinos 51 radiotracer 51 gravitational wave 51 ATP hydrolysis 51 excitation 51 surface plasmons 51 gravitational 51 nitrogen atom 51 tokamak 51 blazar 51 Virgo cluster 51 magnetic dipole 51 dye molecules 51 intramolecular 51 liposome 50 XFEL 50 magnetar 50 interstellar medium 50 circumstellar 50 infalling 50 cosmic ray particles 50 hydrogenase 50 spacetime 50 ultracold atoms 50 diffraction pattern 50 gamma ray emission 50 bosonic 50 radiative 50 particle acceleration 50 atom 50 nitrogen atoms 50 helical structures 50 cyclotron 50 SUSY 50 MeV 50 Rydberg atoms 50 nanobubbles 50 nanomotors 50 X ray emission 50 magnetic reconnection 50 quantum tunneling 50 quantum mechanically 50 wavefunction 50 high redshift galaxies 50 surface plasmon 50 ionize 50 quasiparticle 50 electron density 50 subatomic 50 weak gravitational lensing 50 fullerene 50 ATLAS detector 50 cosmic ray 50 gravitational waves 50 strange quarks 50 fermionic 50 γ 50 diatomic 50 corona 50 decoherence 50 W bosons 50 ultracold 50 hyperpolarized xenon 50 nanoparticles 50 phonon 50 electron orbits 50 colliding protons 50 phosphorus atom 50 dipole magnets 50 cosmic rays 50 boson 50 neutralino 50 magnetosphere 50 proton decay 50 Bose Einstein condensation 50 deuterium nuclei 50 cryostat 50 interstellar clouds 49 ceria 49 elliptical galaxy 49 sterile neutrinos 49 Hawking radiation 49 ejecta 49 millisecond pulsar 49 merging galaxies 49 gamma rays emitted 49 diamagnetic 49 x ray beam 49 nanotube 49 depolarization 49 Bose Einstein condensates 49 oppositely charged 49 galactic disk 49 nanoparticle 49 cell membrane 49 ionized particles 49 photothermal 49 kaons 49 accretion disks 49 rubidium atom 49 cesium atom 49 helium nucleus 49 ionization 49 infall 49 reactants 49 nanoscale 49 electron volt 49 microwave photons 49 oxygen ions 49 proton radiation 49 massless particles 49 noble gases 49 plasmons 49 Dirac equation 49 vibrational modes 49 proton therapy 49 bilayer 49 vibrational 49 magnons 49 ribozyme 49 femtosecond 49 attosecond 49 pulsar 49 photon fluorescence 49 ferromagnet 49 HM Cancri 49 organelle 49 concentration gradient 49 X ray binaries 49 actin filaments 49 photon absorption 49 adenine 49 antibody antigen 49 active galactic nuclei 49 NSLS 49 relativistic protons 49 silicon atoms 49 quark gluon plasma 49 particle detectors 49 tetragonal 49 Higgs bosons 49 proton neutron 49 cobalt atom 49 planet magnetosphere 49 ultracold molecules 49 macrocycle 49 branes 49 supersolid 49 nanotubes 49 hydroxide ions 49 baryons 49 soliton 49 vortices 49 superconducting 49 electronvolts 49 transduction 49 chromophore 49 leptons 49 hydroxyl radicals 49 supernova explosions 49 boron atoms 49 muon neutrinos 49 stoichiometry 49 infrared photons 49 electron pairs 49 intracellular 49 gravitational attraction 49 SMBH 49 SMBHs 49 antimatter 49 quantum mechanical 49 filaments 49 proton proton collisions 48 oppositely directed 48 electron scattering 48 ionised gas 48 riboswitch 48 actin filament 48 cesium atoms 48 dwarf galaxy 48 stilbene 48 axions 48 carbene 48 supernova explosion 48 manganese atoms 48 quarks 48 vesicles 48 Z boson 48 helices 48 interparticle 48 ion beams 48 protoplanetary disk 48 chromophores 48 QDs 48 calcium ion 48 quasicrystal 48 chlorine atom 48 membrane 48 quadrupole 48 kinesin 48 Higgs singlet 48 supercurrent 48 nanodot 48 biomolecule 48 tetramers 48 Mott insulator 48 titania nanotubes 48 metastable 48 dopants 48 protonated 48 planetesimals 48 femtosecond pulses 48 torus 48 galaxy M# [002] 48 relativistic speeds 48 Eta Carinae 48 blazars 48 Alfvén waves 48 picosecond 48 nonequilibrium 48 antiparallel 48 fermionic atoms 48 X ray photons 48 muon neutrino 48 emit photon 48 solitons 48 myosin 48 gravitons 48 electron tunneling 48 gelsolin 48 supersymmetric particles 48 excitations 48 VHE gamma rays 48 absorption spectroscopy 48 nanodiamond 48 optical wavelengths 48 deuterium tritium 48 spiral galaxies 48 gamma ray burst 48 Gravitational waves 48 quasar 48 uncharged particles 48 globular clusters 48 VLTI 48 porphyrins 48 tetramer 48 helical 48 substorm 48 hydrogen deuterium 48 Cassini ion 48 inhomogeneous 48 strontium atoms 48 nucleobases 48 photons particles 48 photocatalysts 48 Raman scattering 48 hyperpolarization 48 radioactive decay 48 deuterium 48 reactant 48 linac 48 Bose Einstein Condensate 48 AGNs 48 ion beam 48 absorbs photons 48 circumstellar disk 48 radiative recombination 48 antihydrogen atoms 48 biological molecules 48 Ca2 + 48 ab initio calculations 48 isomeric 48 nanorod 48 tokamaks 48 nanodevice 48 quark 48 X ray binary 48 globular cluster 47 spheroidal 47 macromolecules 47 nanospheres 47 antihelium 47 metal ions 47 sulfur atoms 47 adsorption 47 entangled quantum 47 fission reactions 47 particle accelerator 47 gravitational interaction 47 x ray pulses 47 femtoseconds 47 multipartite entanglement 47 supernovae 47 chiral molecules 47 dipolar 47 femtosecond timescale 47 pseudogap 47 photosystem 47 superpositions 47 bosons 47 electron bunches 47 crystal lattice 47 macromolecular 47 Fomalhaut b 47 baryonic 47 Brownian motion 47 superfluid helium 47 vesicle fusion 47 electron neutrino 47 superdense 47 subunits 47 photochemistry 47 anions 47 paramagnetic 47 entangled photons 47 iron pnictides 47 cytosolic 47 hydride 47 energetic gamma rays 47 spectroscopic 47 linear accelerator 47 ions electrically charged 47 physicists 47 valence electrons 47 Bullet Cluster 47 mitochondrion 47 chemically reactive 47 micrometre sized 47 synchrotron X ray 47 kcal mol 47 adsorbed 47 nonlinear optical 47 multiphoton 47 photonic crystal 47 superluminal 47 quanta 47 transporter proteins 47 electrostatic repulsion 47 electronic excitations 47 supersymmetric 47 qubits 47 globulars 47 ATPase 47 antiquarks 47 LINAC 47 collisional 47 mitochondrial membrane 47 photon pairs 47 gravitational acceleration 47 SN #A 47 dynamical 47 californium 47 alkali atoms 47 protons electrons 47 lepton 47 transmembrane 47 gold nanorods 47 hydrogen 47 spherical 47 superconductor 47 inner mitochondrial membrane 47 Muons 47 ligands 47 planets orbits 47 axion 47 antiferromagnetic 47 tau neutrinos 47 WASP #b 47 colloidal particles 47 microcavity 47 electron proton 47 thermodynamically 47 microscopic bubbles 47 UV photons 47 dinitrogen 47 SWCNT 47 magnetic particles 47 microscale 47 nebular 47 starburst galaxies 47 Neutrons 47 nanometer sized 47 BECs 47 planetary nebula 47 Wolf Rayet star 47 HD#b 47 mesoporous 47 shorter wavelengths 47 trimers 47 microtubule 47 potassium ions 47 photoemission 47 Fig. 2b 47 optical resonator 47 quantum electrodynamics 47 runaway thermonuclear 47 blue straggler 47 titin 47 nanosheets 47 solar nebula 47 hydrophobic molecules 47 Gamma rays 47 6S RNA 47 brown dwarf 47 optical excitation 47 outer membrane 47 SNARE proteins 47 unpaired electrons 47 nanodiamonds 47 SNAREs 47 hydrophobic interactions 47 spherically symmetric 47 synchrotron radiation 47 absorb neutrons 47 highly collimated 47 silicon monoxide 47 Tokamak 47 exoplanetary 47 impactors 47 photoactivation 47 van der Waals forces 47 microtubules 47 comet nucleus 47 evanescent waves 47 plasmonic 47 polypeptide chain 47 berkelium 47 CMEs 47 microcavities 47 molecular orbitals 47 B mesons 46 beryllium ions 46 galaxy 46 alkynes 46 proton beam therapy 46 xenon ions 46 antineutrino 46 nucleosynthesis 46 interferometers 46 hydroxyl radical 46 gravitationally bound 46 elliptical galaxies 46 hypervelocity 46 superconducting magnet 46 biomolecules 46 nanocages 46 astrophysical objects 46 tetrahedral 46 RS Ophiuchi 46 phosphorus atoms 46 Red Rectangle 46 antiferromagnets 46 stimulated emission 46 GRB# 46 polarized electrons 46 topological defects 46 quantum dots 46 neutron beams 46 Schrödinger cat 46 colocalization 46 gamma ray radiation 46 CMB radiation 46 ionise 46 DNA strands 46 planetary nebulae 46 electron lasers 46 enthalpy 46 tera electron volts 46 laser excitation 46 cometary material 46 H#O# 46 nanocarrier 46 THz radiation 46 infrared laser beam 46 analyte 46 galactic cosmic rays 46 hydrides 46 hexamers 46 electron laser 46 microfluidic channels 46 nanocrystal 46 dwarf galaxies 46 ultracold gas 46 electron beam 46 electron orbiting 46 polypeptides 46 disulfide bond 46 XTE J# 46 terahertz waves 46 Diels Alder 46 chirality 46 interferometer 46 epoxide 46 unpaired electron 46 superfluids 46 Super Kamiokande 46 photosynthetic protein 46 Crab Pulsar 46 tholins 46 photolysis 46 gravity warps 46 covalent bond 46 protein complexes 46 phytochrome 46 spontaneous fission 46 quantum entanglement 46 phospholipid 46 cesium ions 46 ionizes 46 nebula 46 Fermions 46 clathrate 46 tetrahedra 46 Alfven waves 46 iron oxide nanoparticles 46 EGF receptor 46 CERN LHC 46 spiral galaxy 46 organic molecules 46 Cherenkov radiation 46 controllably 46 BaBar experiment 46 polymerization 46 D meson 46 aerosol particles 46 osmium 46 LHC accelerator 46 polymerisation 46 J# +# [002] 46 carbon atom 46 rotating neutron stars 46 ionizing 46 keV 46 extracellular 46 gravitational microlensing 46 electron positron pairs 46 synchrotrons 46 tRNA 46 Virgo Cluster 46 Arches Cluster 46 Einstein equations 46 emit X rays 46 terahertz radiation 46 cosmological constant 46 cytochrome c 46 droplet 46 cavity QED 46 colliders 46 membrane fusion 46 millivolts 46 NADH 46 cryo electron microscopy 46 kD 46 particle colliders 46 Yarkovsky effect 46 NMR spectra 46 dimerization 46 galactic clusters 46 nucleophilic 46 electron accelerator 46 electrode 46 Keck Interferometer 46 heterogeneous catalysts 46 bilayer graphene 46 accreting 46 Advanced LIGO 46 nucleation 46 rubidium 46 primary cilium 46 energetic electrons 46 magnesium ion 46 microquasar 46 beamline 46 synchrotron x ray 46 carbon atoms 46 dephosphorylation 46 SWNT 46 Antennae Galaxies 46 spherical nanoparticles 46 bacterial genomes 46 blue supergiant 46 monolayer 46 krypton atoms 46 rotational axis 46 cytoplasmic 46 superposition 46 X ray emitting 46 proton pump 46 unpolarized 46 neutron flux 46 helicases 46 interconversion 46 Protons 46 supergiant star 46 ferromagnetism 46 cantilever deflection 46 caveolae 46 spectroscopic analysis 45 histidine 45 GRBs 45 conformational changes 45 positronium 45 anisotropy 45 GQ Lupi 45 type Ia supernova 45 infrared laser pulses 45 nanobacteria 45 relativistic jets 45 refractive index 45 oxidant 45 semiconductor quantum dots 45 electrostatic interactions 45 PSR J# +# 45 protoplanetary 45 F actin 45 quantum particles 45 nanoprobes 45 Brookhaven Relativistic Heavy 45 diffusive 45 chemical reactions 45 excitonic 45 active galactic nucleus 45 ATP synthase 45 protein fragment 45 myoglobin 45 microspheres 45 oxidants 45 scanning electron microscopes 45 covalent bonds 45 steric 45 amino acids 45 mutant proteins 45 particle astrophysics 45 magnetization reversal 45 lipid vesicles 45 triangular lattice 45 quantum gravity 45 coherent superposition 45 linearly polarized 45 eclipsing binary 45 electron flux 45 magnetoresistance 45 neutron radiation 45 graphene membrane 45 microchannels 45 picoseconds 45 maser 45 ligand binding 45 impactor 45 Eq. 45 general relativity 45 photon counting 45 semiconducting materials 45 filamentary structure 45 graphene sheets 45 myosin V 45 catalysis 45 cilium 45 magnetic excitations 45 chlorophyll molecule 45 hydrino 45 Enceladus 45 diffract 45 fluorescence intensity 45 sulfur atom 45 walled carbon nanotube 45 diffusible 45 gravitational lensing 45 DFT calculations 45 diffracted 45 crystallographic 45 nanodroplets 45 Fermilab Tevatron 45 NADPH 45 Neutron stars 45 magnetic bead 45 intensity modulated radiation 45 Fig. 4B 45 chloride ions 45 lipid membrane 45 electrons protons 45 electron volts 45 Casimir cavity 45 photosystems 45 diffusion coefficient 45 van der Waals interactions 45 supermassive 45 photosynthetic apparatus 45 magnetospheric 45 elongated orbits 45 cyclization 45 extrasolar 45 P selectin 45 viral particles 45 quantum coherence 45 colliding galaxies 45 microwave photon 45 resonance frequency 45 infalling matter 45 extragalactic 45 lithium ions 45 ionic 45 kinesin motor 45 ultraviolet photons 45 spectroscopic techniques 45 GRB # 45 particle collisions 45 lipid bilayer 45 nucleolus 45 magnetotail 45 velocities 45 nitric oxide NO 45 polypeptide 45 uranium Schewe 45 gold nanoshells 45 oscillations 45 detect gravitational waves 45 interstellar dust grains 45 quadrillionths 45 prokaryote 45 Rayleigh scattering 45 photochemical reactions 45 emit photons 45 molecule binds 45 SWCNTs 45 VE cadherin 45 brown dwarfs 45 circular orbits 45 antimatter atoms 45 supercooling 45 catalytic reactions 45 dopant atoms 45 ganglion cells 45 Earth ionosphere 45 proton antiproton 45 electron electron 45 hydrocarbon molecules 45 attoseconds 45 crystalline structure 45 Photons 45 foreground galaxy 45 resonant cavity 45 photon laser 45 nanodots 45 superconducting qubits 45 microbubble 45 Bose Einstein condensate BEC 45 glomerulus 45 spectroscopically 45 meta atoms 45 X ray wavelengths 45 Higgs particle 45 millisecond pulsars 45 coronal mass ejection 45 copper oxide superconductors 45 nanosphere 45 angstrom resolution 45 aqueous solution 45 optical lattices 45 tidally 45 graviton 45 fluorescence resonance energy 45 quasars 45 cytosol 45 glycan 45 distant galaxies 45 micelle 45 alpha catenin 45 LCLS 45 pion 45 Henize #-# 45 X ray diffraction pattern 45 cell membranes 45 cosmic strings 45 Milky Way galaxy 45 astrophysical 45 nanowire 45 Pauli exclusion 45 RNA molecule 45 membrane protein 45 photonic crystal fiber 45 intracellular pH 45 collagen fibrils 45 optical interferometry 45 hemoglobin molecules 45 surface plasmon resonance 45 ionisation 45 GRB #B 45 neutrino particles 45 anomalous dispersion 45 gamma ray photons 45 hydrophobic 45 plasma membrane 45 strontium titanate 45 self assembled monolayers 45 dopant 45 magnetisation 45 superconductors 45 atom smashers 45 sunlike star 45 sulfate aerosol 45 photoelectron spectroscopy 45 spectroscopy 45 filament 45 quinone 45 X ray beams 45 collimators 45 biogenesis 45 linacs 45 galactic halo 45 collimator 45 dimensional electron 45 spectra 45 cobalt ions 45 phospholipids 45 procaspase 3 45 CMB photons 45 uracil 45 palytoxin 45 photoelectron 45 metallicity 45 oligomerization 45 cadherins 45 graphene flakes 45 SQUIDs