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Exact density functional theory with the density matrix renormalization group
density functional theory density matrix renormalization group electronic structure models
2011/8/17
Abstract: Combining density functional theory with controlled numerical methods for strongly correlated systems could greatly extend the range of both. We use the density matrix renormalization group ...
Exploring Interatomic Coulombic Decay by Free Electron Lasers
Free Electron Lasers Interatomic Coulombic
2011/8/29
To exploit the high intensity of laser radiation, we propose to select frequencies at which singlephoton absorption is of too low energy and two or more photons are needed to produce states of an atom...
Sc III Spectral Properties of Astrophysical Interest
Oscillator strengths lifetimes solar photosphere
2011/8/18
Abstract: Transition properties such as oscillator strengths, transition rates, branching ratios and lifetimes of many low-lying states in the doubly ionized scandium (Sc III) are reported. A relativi...
Assignment of resonances in dissociative recombination of HD+ ions: high-resolution measurements compared with accurate computations
Assignment of resonances dissociative recombination high-resolution measurements accurate computations
2011/8/11
Abstract: The collision-energy resolved rate coefficient for dissociative recombination of HD+ ions in the vibrational ground state is measured using the photocathode electron target at the heavy-ion ...
Locking Local Oscillator Phase to the Atomic Phase via Weak Measurement
Locking Local Oscillator Atomic Phase Weak Measurement
2011/8/11
Abstract: We propose a new method to reduce the frequency noise of a Local Oscillator (LO) to the level of white phase noise by maintaining (not destroying by projective measurement) the coherence of ...
Fermi gas with attractive potential and arbitrary spin in one-dimensional trap
Fermi gas attractive potential arbitrary spin one-dimensional trap
2011/8/18
Abstract: A gas of ultracold $^6$Li atoms (effective spin 1/2) confined to an elongated trap with one-dimensional properties is a candidate to display three different phases: (i) fermions bound in Coo...
The Hanle Effect of the Hydrogen Ly-alpha Line for Probing the Magnetism of the Solar Transition Region
Hanle Effect Hydrogen Ly-alpha Line Solar Transition Region
2011/8/18
Abstract: We present some theoretical predictions concerning the amplitude and magnetic sensitivity of the linear polarization signals produced by scattering processes in the hydrogen Ly-alpha line of...
Generating Molecular Rovibrational Coherence by Two-Photon Femtosecond Photoassociation of Thermally Hot Atoms
Generating Molecular Rovibrational Two-Photon Femtosecond Photoassociation Thermally Hot Atoms
2011/8/18
Abstract: The formation of diatomic molecules with rotational and vibrational coherence is demonstrated experimentally in free-to-bound two-photon femtosecond photoassociation of hot atoms. In a therm...
High-brightness switchable multi-wavelength remote laser in air
High-brightness switchable multi-wavelength remote laser air
2011/8/5
Abstract: Remote laser in air based on amplified spontaneous emission (ASE) has produced rather well-collimated coherent beams in both backward and forward propagation directions, opening up possibili...
Dopant induced ignition of helium nanodroplets in intense few-cycle laser pulses
Dopant helium nanodroplets intense few-cycle laser pulses rare-gas
2011/8/11
Abstract: We demonstrate ultrafast resonant energy absorption of rare-gas doped He nanodroplets from intense few-cycle (~10 fs) laser pulses. We find that less than 10 dopant atoms "ignite" the drople...
Gyromagnetic Factors and Atomic Clock Constraints on the Variation of Fundamental Constants
Gyromagnetic Factors Atomic Clock Constraints Fundamental Constants
2011/8/17
Abstract: We consider the effect of the coupled variations of fundamental constants on the nucleon magnetic moment. The nucleon g-factor enters into the interpretation of the measurements of variation...
Universality in bosonic dimer-dimer scattering
Universality bosonic dimer-dimer scattering Quantum Gases
2011/8/5
Abstract: Bosonic dimer-dimer scattering is studied near the unitary limit using momentum-space equations for the four-particle transition operators. The impact of the Efimov effect on the dimer-dimer...
Causality and quantum interference in time-delayed laser-induced nonsequential double ionization
Causality quantum interference time-delayed laser-induced nonsequential double ionization
2011/8/5
Abstract: We perform a detailed analysis of the importance of causality within the strong-field approximation and the steepest descent framework for the recollision-excitation with subsequent tunnelin...
Atomic data for neutron-capture elements II. Photoionization and recombination properties of low-charge krypton ions
Atomic data neutron-capture elements II Photoionization low-charge krypton ions
2011/8/17
Abstract: We present multi-configuration Breit-Pauli distorted-wave photoionization (PI) cross sections and radiative recombination (RR) and dielectronic recombination (DR) rate coefficients for the f...
Realization of an optomechanical interface between ultracold atoms and a membrane
optomechanical interface ultracold atoms membrane Quantum Gases
2011/8/17
Abstract: We have realized a hybrid optomechanical system by coupling ultracold atoms to a micromechanical membrane. The atoms are trapped in an optical lattice, which is formed by retro-reflection of...