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185 papers · 1 filter
Resonant Cascaded Down-Conversion
Christian Weedbrook, Ben Perrett, Karen V. Kheruntsyan +3
We analyze an optical parametric oscillator (OPO) in which cascaded down-conversion occurs inside a cavity resonant for all modes but the initial pump. Due to the resonant cascade…
Magnetic and Metallic State at Intermediate Hubbard U Coupling in Multiorbital Models for Undoped Fe Pnictides
Rong Yu, Kien T. Trinh, Adriana Moreo +4
Multi-orbital Hubbard model Hamiltonians for the undoped parent compounds of the Fe-pnictide superconductors are here investigated using mean-field techniques. For a realistic four…
Theoretical and experimental analysis of H2 binding in a prototype metal organic framework material
Lingzhu Kong, Valentino R. Cooper, Nour Nijem +4
Hydrogen adsorption by the metal organic framework (MOF) structure Zn2(BDC)2(TED) is investigated using a combination of experimental and theoretical methods. By use of the nonempi…
Three-dimensional Resonance in superconducting BaFeNiAs
Songxue Chi, Astrid Schneidewind, Jun Zhao +8
We use inelastic neutron scattering to study magnetic excitations of the FeAs-based superconductor BaFeNiAs above and below its superconducting transition tempe…
Big Bang Nucleosynthesis with Independent Neutrino Distribution Functions
Christel J. Smith, George M. Fuller, Michael S. Smith
We have performed new Big Bang Nucleosynthesis calculations which employ arbitrarily-specified, time-dependent neutrino and antineutrino distribution functions for each of up to fo…
Real space first-principles derived semiempirical pseudopotentials applied to tunneling magnetoresistance
K. H. Bevan, Tony Low, H. Guo
In this letter we present a real space density functional theory (DFT) localized basis set semi-empirical pseudopotential (SEP) approach. The method is applied to iron and magnesiu…