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  • Work
    Article
    Kocharian, Armen N.
    The ground-state (GS) properties of the one-dimensional (1D) Hubbard model at half-filling are examined in the presence of a magnetic field using the generalized mean-field (GMF) approach, which includes the spin-density and the electron-hole correlat . . .
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    Article
    Adlakha, I.
    Dislocation core properties of tin (β-Sn) were investigated using the semi-discrete variational Peierls–Nabarro (SVPN) model. The SVPN model, which connects the continuum elasticity treatment of the long-range strain field around a dislocation with an . . .
  • Work
    Article
    Zhu, Yongtian
    Using an optical vortex coronagraph (OVC) is one of the most promising techniques for directly imaging exoplanets because of its small inner working angle and high throughput. This paper presents the design and laboratory demonstration performance of . . .
  • Work
    Article
    Gayles, Jacob
    We demonstrate that biological molecules such as Watson–Crick DNA base pairs can behave as biological Aviram–Ratner electrical rectifiers because of the spatial separation and weak hydrogen bonding between the nucleobases. We have performed a parallel . . .
  • Work
    Article
    Collas, Peter
    We calculate the transformation and inverse transformation, in the form of Taylor expansions, from arbitrary coordinates to Fermi-Walker coordinates in tubular neighborhoods of arbitrary timelike paths for general spacetimes. Explicit formulae for coe . . .
  • Work
    Article
    Hu, Wen-Jun
    Gutzwiller-projected fermionic states can be efficiently implemented within quantum Monte Carlo calculations to define extremely accurate variational wave functions for Heisenberg models on frustrated two-dimensional lattices, not only for the ground . . .
  • Work
    Article
    Udalov, Oleg G.
    We develop a theory of the exchange interaction between ferromagnetic (FM) metallic grains embedded into insulating matrix by taking into account the Coulomb blockade effects. For bulk ferromagnets separated by the insulating layer the exchange intera . . .
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    Article
    Li, Yi Li
    In this paper, we study the Cauchy problem of a cubic autocatalytic chemical reaction system u1,t = u1,xx − uα1 uβ2, u2,t = du2,xx+ uα1 uβ2 with non-negative initial data, where the exponents α,β satisfy 1<α,βd>0 is the Lewis number. Our purpose is to . . .
  • Work
    Article
    Carlson, B.E.
    We present the results of a search for time correlations in high energy cosmic ray data (primary E > 1014 eV) collected by the California HIgh school Cosmic ray ObServatory (CHICOS) array. Data from 60 detector sites spread over an area of 400 km2 wer . . .
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    Article
    Sheng, Donna
    Topological phase transitions in a three-dimensional (3D) topological insulator (TI) with an exchange field of strength g are studied by calculating spin Chern numbers C±(kz) with momentum kz as a parameter. When |g| exceeds a critical value gC, a tra . . .