The D1Π state of HD and the mass scaling relation of its predissociation widthsAbsorption spectra of HD have been recorded in the wavelength range of 75 to 90 nm at 100 K using the vacuum ultraviolet Fourier transform spectrometer at the Synchrotron SOLEIL. The present…G. D. Dickenson, W. Ubachs·Jan 3, 2013SaveLearn
Precision spectroscopy of high rotational states in H2 investigated by Doppler-free two-photon laser spectroscopy in the EF1Σg+ - X1Σg+ systemRecently a high precision spectroscopic investigation of the EF1Σg+ - X1Σg+ system of molecular hydrogen was reported yielding information on QED and relativistic effects in a sequence of…G. D. Dickenson, E. J. Salumbides, M. Niu et al.·Jan 3, 2013SaveLearn
Spatial correlations in finite samples revealed by Coulomb explosionWe demonstrate that fast removal of many electrons uncovers initial correlations of atoms in a finite sample through a pronounced peak in the kinetic-energy spectrum of the exploding ions. This…Ulf Saalmann, Alexey Mikaberidze, Jan M. Rost·Dec 24, 2012SaveLearn
Comments on structural types of toroidal carbon nanotubesWe clarify the relationships between the eight structural types of toroidal carbon nanotubes (TCNTs), which can be identified as the eight corners of a cube of structural transformation. The four…Chern Chuang, Yuan-Chia Fan, Bih-Yaw Jin·Dec 19, 2012SaveLearn
Anion-radical oxygen centers in small (AgO)n clusters: density functional theory predictionsAnion-radical form of the oxygen centers O(-) is predicted at the DFT level for small silver oxide particles having the AgO stoichiometry. Model clusters (AgO)n appear to be ferromagnetic with…Egor V. Trushin, Igor L. Zilberberg·Dec 4, 2012SaveLearn
Time-resolved studies on the collapse of magnesium atom foam in helium nanodropletsMagnesium atoms embedded in superfluid helium nanodroplets have been identified to arrange themselves in a metastable network, refered to as foam. In order to investigate the ionization dynamics of…S. Göde, R. Irsig, J. Tiggesbäumker et al.·Dec 4, 2012SaveLearn
Pumping K-Alpha Resonance Fluorescence by Monochromatic X-Ray SourcesWe demonstrate the correspondence between theoretically calculated K-shell resonances lying below the K-edge in multiple ionization states of an element (Pradhan et al. 2009), and recently observed…Sultana N. Nahar, Anil K. Pradhan·Nov 29, 2012SaveLearn
Post-orientation free single molecule imaging by XFELsSingle molecule imaging is one of the main target areas of X-ray free electron lasers. It relies on the possibility of orienting the large number of low counting statistics 2D diffraction patterns…Zoltan Jurek, Gyula Faigel·Nov 29, 2012SaveLearn
Efimov Physics in small bosonic clustersWe study small clusters of bosons, A=2,3,4,5,6, characterized by a resonant interaction. Firstly, we use a soft-gaussian interaction that reproduces the values of the dimer binding energy and the…M. Gattobigio, A. Kievsky, M. Viviani·Nov 28, 2012SaveLearn
Structure of Magnetic Lanthanide Clusters from Far-IR Spectroscopy: Tb (n = 5-9)Small lanthanide clusters have interesting magnetic properties, but their structures are unknown. We have identified the structures of small terbium cluster cations Tb (n = 5-9) in the gas phase, by…John Bowlan, Dan J. Harding, Jeroen Jalink et al.·Nov 27, 2012SaveLearn
Comment on "Measurement of a large Chemical Reaction Rate between Ultracold Closed-Shell 40Ca Atoms and Open-Shell 174Yb+ Ions Held in a Hybrid Atom-Ion Trap"We estimate the radiative quenching rate of the 40Ca - 174Yb+ molecular ion and find that it under-estimates the value reported in recent experiments by about 5 orders of magnitude. We…B. Zygelman, Robert Hunt·Nov 21, 2012SaveLearn
Anomalous isotopic effect on electron-directed reactivity by a 3-μm midinfrared pulseWe have theoretically studied the effect of nuclear mass on electron localization in dissociating H2+ and its isotopes subjected to a few-cycle 3-μm laser pulse. Compared to the isotopic trend in…Kunlong Liu, Qingbin Zhang, Pengfei Lan et al.·Nov 6, 2012SaveLearn
Phase-controlled transparent superluminal light propagation in a Doppler-broadened four-level N-type systemThe propagation of a weak probe field in a four-level N-type quantum system in the presence of spontaneously generated coherence (SGC) is theoretically investigated. The optical properties of the…Lida Ebrahimi Zohravi, Majid Abedi, Mohammad Mahmoudi·Nov 2, 2012SaveLearn
Pseudocrystalline state of the surface of free xenon clustersThe paper presents the results of the experimental study of polarization bremsstrahlung profile halfwidth performed on free xenon clusters with various atom numbers. We used 0.7- and 0.3-keV…E. V. Gnatchenko, A. N. Nechay, A. A. Tkachenko et al.·Oct 30, 2012SaveLearn
Optical Absorption in B13 Cluster: A Time-Dependent Density Functional ApproachThe linear optical absorption spectra of three isomers of planar boron cluster B13 are calculated using time-dependent spin-polarized density functional approach. The geometries of these cluster…Ravindra Shinde, Meenakshi Tayade·Oct 11, 2012SaveLearn
Phase-Controlled Atom-Photon Entanglement in a Three-Level lambda-Type Closed-Loop Atomic SystemThe atom-photon entanglement is studied in a three-level lambda-type closed-loop atomic system in multi-photon resonance condition and beyond it. It is shown that the von Neumann entropy in such a…Ali Mortezapour, Zeinab Kordi, Mohammad Mahmoudi·Sep 27, 2012SaveLearn
Overcoming blockade in producing doubly-excited dimers by a single intense pulse and their decayExcitation of two identical species in a cluster by the absorption of two photons of the same energy is strongly suppressed since the excitation of one subunit blocks the excitation of the other one…Ph. V. Demekhin, K. Gokhberg, G. Jabbari et al.·Sep 25, 2012SaveLearn
Formation and relaxation of RbHe exciplexes on He nanodroplets studied by femtosecond pump and picosecond probe spectroscopyVibrationally resolved photoionization spectra of RbHe exciplexes forming on He nanodroplets are recorded using femtosecond pump-probe spectroscopy with amplitude-shaped probe pulses. The…C. Giese, T. Mullins, B. Gruener et al.·Sep 14, 2012SaveLearn
Effect of C60 giant resonance on the photoabsorption of encaged atomsThe absolute differential oscillator strengths (DOS's) for the photoabsorption of the Ne, Ar, and Xe atoms encapsulated in the C60 have been evaluated using the…Zhifan Chen, Alfred Z. Msezane·Sep 7, 2012SaveLearn
Optical absorption in boron clusters B6 and B6+ : A first principles configuration interaction approachThe linear optical absorption spectra in neutral boron cluster B6 and cationic B6+ are calculated using a first principles correlated electron approach. The geometries of several…Ravindra Shinde, Alok Shukla·Aug 31, 2012SaveLearn
Spatial separation of state- and size-selected neutral clustersWe demonstrate the spatial separation of the prototypical indole(H2O) clusters from the various species present in the supersonic expansion of mixtures of indole and water. The major molecular…Sebastian Trippel, Yuan-Pin Chang, Stephan Stern et al.·Aug 24, 2012SaveLearn
Coherent intense resonant laser pulses lead to interference in the time domain observable in the spectrum of the emitted particlesThe dynamics of atomic levels resonantly coupled by a coherent and intense short high-frequency laser pulse is discussed and it is advocated that this dynamics is sensitively probed by measuring the…Philipp V. Demekhin, Lorenz S. Cederbaum·Aug 2, 2012SaveLearn
Calculation of point defects in rutile TiO2 by the Screened Exchange Hybrid FunctionalThe formation energies of the oxygen vacancy and titanium interstitial in rutile TiO2 were calculated by the screened exchange (sX) hybrid density functional method, which gives a band gap of 3.1 eV,…Hsin-Yi Lee, Stewart J. Clark, John Robertson·Jul 11, 2012SaveLearn
Energy levels, radiative rates, and electron impact excitation rates for transitions in Li-like ions with 12 <= Z <= 20We report calculations of energy levels, radiative rates, and electron impact excitation rates for transitions in Li-like ions with 12 <= Z <= 20. The GRASP (general-purpose relativistic atomic…K. M. Aggarwal, F. P. Keenan·Jul 5, 2012SaveLearn
Attosecond tracking of light absorption and refraction in fullerenesThe collective response of matter is ubiquitous and widely exploited, e.g. in plasmonic, optical and electronic devices. Here we trace on an attosecond time scale the birth of collective excitations…A. S. Moskalenko, Y. Pavlyukh, J. Berakdar·Jun 29, 2012SaveLearn